1. ‘Hybrid Reality: Thriving in the Emerging Human-Technology Civilisation’ – Dr Ayesha Khanna
2. ‘Countryfile: Adam’s Farm: My Life on the Land’ – Adam Henson
3. ‘How to Save Your Planet One Object at a Time’ – Dr Tara Shine
4. ‘Embedding Sustainability: How to Drive Organisational Transformation’ – Pia Heidenmark-Cook
5. ‘Biomimicry in Architecture’ – Michael Pawlyn
6. ‘Lean from Looking: How Observation Drives Innovation’ – Charlie Szoradi
7. ‘The Hot Topic: How to Tackle Global Warming and Still Keep the Lights on’ – David King
8. ‘The Winning of the Carbon War’ – Jeremy Leggett
9. ‘Love, Anger & Betrayal: Just Stop Oik’s Young Climate Campaigners’ – Jonathon Porritt
10. ‘The Ocean and Us’ – Farah Obaidullah

Hybrid Reality: Thriving in the Emerging Human-Technology Civilisation by Dr Ayesha Khanna

Exploring the profound shift from merely coexisting with technology to actively coevolving with it, Ayesha examines the rise of an age where technology is ubiquitous, intelligent, and social, shaping not only how we live but also how we feel and connect. With sensors, autonomous systems, and emotionally responsive devices, technology now influences human behaviour as much as we influence it. This thought-provoking book asks how individuals, societies, and nations will adapt to a world where technology has agency and where the future of humanity is inseparable from the machines we create.

Dr Ayesha Khanna is co-founder and CEO of ADDO AI, specialising in artificial intelligence and smart city solutions that drive sustainability. With over 15 years’ experience in technology innovation, she advises governments and corporations worldwide on using AI to create greener, more resilient urban systems and sustainable, human-centred environments.

A Breed Apart: My Adventures With Britain’s Rarest Breeds by Adam Henson

Unlike many sustainability books that concentrate on technology, policy or lifestyle changes, this story looks to Britain’s fields and farms, celebrating the rare native breeds that have quietly sustained people and landscapes for centuries. From the iconic Highland cow to the resilient Cotswold sheep and the unusual Manx Loagthan ram, each animal reveals a deeper connection between farming, conservation and biodiversity. By focusing on living heritage rather than abstract concepts, it offers a refreshing perspective on sustainability, showing how protecting rare breeds safeguards genetic diversity, strengthens rural communities and secures more resilient and ethical food systems for the future.

Adam Henson is one of Britain’s most beloved farmers and is renowned as a long-time presenter on BBC Countryfile. As the owner of the Cotswold Farm Park, he is a passionate advocate for sustainable farming and caring for rare breeds. He combines decades of hands-on agricultural experience with media expertise, authorship, and public speaking on conservation and sustainability.

How to Save Your Planet One Object at a Time by Dr Tara Shine

A practical and empowering guide to everyday sustainability. Through familiar household objects, like coffee cups, toothbrushes, and phones, Tara shows how small yet conscious choices can make a big difference for the planet. By blending science with accessible tips, the book helps readers understand the environmental impact of everyday items and offers realistic steps toward reducing waste, cutting carbon, and living more sustainably. Engaging and solution-focused, it’s a handbook for anyone wanting to create meaningful change without feeling overwhelmed.

Dr Tara Shine is an environmental scientist and co-founder of Change by Degrees, dedicated to making sustainability accessible. With over 20 years’ experience in climate policy and UN negotiations, she co-founded Plastic Free Kinsale and is a leading voice on climate justice, sustainable development, and practical action for a greener future.

Embedding Sustainability: How to Drive Organisational Transformation by Pia Heidenmark-Cook

Drawing on her experience as IKEA’s former Chief Sustainability Officer, Pia shares strategies, real case studies, and actionable insights for embedding environmental and social responsibility into corporate culture, operations, and strategy. Clear, pragmatic, and inspiring, the book demonstrates how organisations can move beyond surface-level initiatives to achieve meaningful, lasting impact while creating value for people, planet, and profit. It is a practical guide for leaders aiming to integrate sustainability into the heart of their business.

Pia Heidenmark-Cook, former Chief Sustainability Officer at Ingka Group (IKEA), is a global leader in corporate sustainability. She pioneered circular business models, clean energy adoption, and responsible sourcing, making IKEA an industry benchmark. Today, she advises boards, speaks internationally, and guides organisations on embedding sustainability into strategy, culture, and operations.

Biomimicry in Architecture by Michael Pawlyn

Drawing on examples from ecosystems and organisms, Michael explores how nature’s designs can inspire innovative, sustainable solutions in the built environment. He demonstrates how architects and designers can reduce energy use, minimise waste, and create regenerative spaces by emulating natural processes. With both practical and visionary insights, the book shows how biomimicry can revolutionise materials, structures, and systems to tackle environmental challenges while enhancing human well-being. An accessible and thought-provoking read, it’s essential for anyone interested in the intersection of architecture, design, and sustainability.

Michael Pawlyn is a pioneering architect and sustainability leader, renowned for applying biomimicry to design regenerative, nature-inspired solutions. A key figure behind The Eden Project and founder of Exploration Architecture, he advocates for circular economy principles and innovative approaches that address environmental challenges while reshaping the future of sustainable architecture.

Learn from Looking: How Observation Inspires Innovation by Charlie Szoradi

Through Charlie’s unique exploration of how careful observation can spark creative problem-solving, he blends his insights from architecture, design, sustainability, and everyday life. Demonstrating how paying attention to the details around us can fuel innovation and lead to smarter, more sustainable solutions, his engaging stories and practical lessons encourage readers to slow down, see the world differently, and uncover inspiration in unexpected places. It’s both a guide to creativity and a call to rethink how we approach challenges in business, design, and daily living.

Charlie Szoradi is a sustainability expert with over 30 years of experience in high-performance architecture, green technology, and next-generation agriculture. Founder of multiple award-winning organisations, he has advised Fortune 100 companies and the US military. A sought-after speaker and thought leader, Charlie champions cost-effective, innovative solutions for a more sustainable future.

The Hot Topic: How to Tackle Global Warming and Still Keep the Lights On by Sir David King

Cutting through the noise to deliver a clear, balanced guide to climate change, David combines science, policy, and practical advice to explain how the climate is changing, the adaptations required, and the technologies and political strategies that can drive solutions. He also highlights what individuals and communities can do to make a real, measurable impact. With accessible language and action-oriented plans, the book offers hope and direction for addressing global warming while sustaining modern life.

Sir David King is a leading scientist and climate advisor, best known as the UK Government’s former Chief Scientific Adviser and Climate Change Representative. Now Chair of the Climate Crisis Advisory Group, he continues to influence global policy, champion sustainable solutions, and speak internationally on tackling climate change and energy challenges.

The Winning of the Carbon War by Jeremy Leggett

A frontline account of the global struggle between clean energy advocates and defenders of fossil fuels. Drawing on his 25 years in the fight against climate change, Jeremy chronicles the turning point years from 2013 to the landmark Paris Agreement in 2015, offering a compelling insider’s perspective on how momentum shifted toward a sustainable future. With an updated chapter covering 2016 and 2017, this book captures both the drama and hope of a world in transition to clean energy.

Jeremy Leggett is a pioneering social entrepreneur, writer, and climate campaigner. Founder of Solarcentury and SolarAid, and more recently Highlands Rewilding, he has dedicated his career to advancing renewable energy and biodiversity. A former Greenpeace scientist, he is a respected global voice on sustainability, energy transition, and climate action.

Love, Anger & Betrayal: Just Stop Oil’s Young Climate Campaigners by Jonathon Porritt

Through capturing the voices of 26 young activists risking arrest to demand urgent climate action, Jonathon shares their personal stories, exploring the emotions, convictions, controversial activities, and moral questions driving a new generation to embrace civil disobedience for intergenerational justice. Poignant and provocative, it highlights the courage of those confronting climate breakdown and challenges readers to reflect on responsibility, activism, and hope for the future.

Jonathon Porritt is a leading UK environmentalist, Co-Founder of Forum for the Future, and former Co-Chair of the Green Party. He has chaired the Sustainable Development Commission, directed Friends of the Earth, and served for 14 years as a WWF UK Trustee. An accomplished author, he has written nine influential books.

The Ocean and Us by Farah Obaidullah

Bringing together insights from over 35 global experts to explore humanity’s vital relationship with the ocean, the book covers themes from climate change, overfishing, and pollution to the blue economy and marine animal welfare. Highlighting both threats and solutions whilst also examining governance, innovation, and the social dimensions of ocean stewardship, it makes complex concepts accessible to all readers. Aimed at enhancing ocean literacy, this essential guide empowers individuals and communities to push for healthier seas and a sustainable future.

Farah Obaidullah is a leading ocean advocate with over 20 years of experience protecting marine ecosystems. Formerly Senior Oceans Campaigner at Greenpeace, she founded The Ocean and Us and Women4Oceans, championing healthy seas, stopping deep-sea mining, and empowering women in marine industries. A scientist and speaker, she inspires global action for our oceans.

Hire a Top Sustainability Speaker Today!

If you want to dive deeper into the key actions necessary to ensure a more climate-conscious future, improve environmental literacy, and learn how you or your business can positively impact ecological surroundings by changing elements in day-to-day life, don’t hesitate to contact one of our booking agents to secure your speaker. Call us on 02039355587 or simply fill out our online contact form.

World Wildlife Day takes place on the 3rd of March 2026. Businesses and organisations use this day to organise sustainability-themed conferences guided by powerful environmental experts. Discover our top pick of conservationists available to book below.

Source: World Wildlife Day

What Is World Wildlife Day?

The United Nations General Assembly made the 3rd of March a day to celebrate the Earth’s flora and fauna in 2013. The day holds significance, as it commemorates the signing of the Convention on International Trade in Endangered Species of Wild Fauna and Flora in 1973.

The theme for World Wildlife Day 2026 is Medicinal and Aromatic Plants: Conserving Health, Heritage and Livelihoods.

Source: World Wildlife Day

As we look towards the 2026 event, now is the time to book a sustainability speaker. Take a look at the following speakers who have received official customer feedback & high client ratings from 55 events across 2022, 2023, and 2024:

Heather Mills

After losing her leg in an accident, Heather Mills saw firsthand how many prosthetics were wasted in the United Kingdom. To target this, she set up a charity that recycled old prostheses for disadvantaged amputees, as well as became a spokesperson for other amputees. In 2012, Heather was a patron of Vegetarians’ International Voice for Animals and the Vegetarian and Vegan Foundation, reflecting her ongoing dedication to animal advocacy.

Frank Pope

For four years, Frank Pope was the only Ocean Correspondent in the world. In this role, he showcased exploration achievements and promoted offshore energy. Despite initially being an advocate for the Earth’s oceans, he returned to land in 2012 to work in Kenya for Save the Elephants. Frank has supported more than 58 partner organisations in Africa, fighting to protect land animals from poaching and trafficking.

Tara Shine

Female inspirational figure and global scientist, Tara Shine, is one of the most influential figures in the STEM industry. She uses her experiences as a public speaker to spread awareness of the climate crisis. Recent speaking arrangements include the World Bank Group, the National Park & Wildlife Service and the Irish Ministry of Foreign Affairs and Environmental Protection Agency. As the Head of Research at the Mary Robinson Foundation, Tara continues to explore methods to reverse climate change.

Sir Tim Smit KBE

Sir Tim Smit KBE is credited with The Eden Project’s incredible popularity, as not just an entertainment attraction but an opportunity to learn. He also worked closely on the Lost Gardens of Heligan, a picturesque, mystical escape for families. Both situated in Cornwall, Tim’s interest in the Cornish landscape started when his family moved there in 1987. He has since published a book, Eden, and earned the title of Honorary Knight Commander of the Order of the British Empire in 2011.

Andy Pag

A regular face at sustainability conferences, Andy Pag‘s story of exploration in a cooking oil-fuelled bus is utterly captivating. Initially from a scrap yard, he travelled the world in the old bus. Despite the interior being refurbished with reclaimed materials, the journey was far from easy – or comfortable. An event featuring Andy is privileged to his incredible mindset on the age-old saying, reduce, reuse, recycle.

Steve Backshall

Steve Backshall is an acclaimed wildlife presenter, explorer, and conservationist, best known for the BBC’s “Deadly 60”. With over 20 years of experience, he combines thrilling adventure with vital environmental education. His fearless expeditions and compelling storytelling highlight the urgency of wildlife conservation and climate action. Honoured with an MBE and multiple awards, Steve’s dynamic speaking style captivates global audiences. His passion, knowledge, and charisma make him an ideal ambassador and speaker for World Wildlife Day.

Chris Huhne

Influential former politician Chris Huhne is renowned for being an expert in energy and climate change. The award-winning writer has produced countless articles and journal entries, commenting on the current dangers threatening our planet. Previous testimonials of his speaking arrangements describe Chris as having “a genuine concern for the environment with a detailed understanding of finance and economics”, reflecting his unique perspective as both an environmentalist and an economist.

Robert Swan

In partnership with Climate Force Challenge, Robert Swan has vowed to clean up 326 million tonnes of CO2 by 2025. Though this may seem impossible, his conservationist work has already seen him clear 1,500 tons of waste left over from scientific research in 1996, a feat which then allowed the native colony of penguins to reclaim the landscape. Robert has taken part in several influential missions, including the 1989 Ice Walk and an expedition to clean up debris from a sunken ship, all of which audiences of his speeches greatly enjoy.

Sir Jonathon Porritt

Sir Jonathon Porritt is the highly regarded co-founder of The Forum of the Future, one of the UK’s leading sustainable development charities, boasting over 100 partner organisations. His work has taken him all over the world, as well as to the stages of countless international speaking conferences on sustainability. In recognition of his work, Jonathon was awarded a CBE in 2000, for “services to environmental protection”.

Lizzie Carr

Lizzie Carr is a pioneering environmental activist, adventurer and sustainability expert, making her an inspiring choice for World Wildlife Day. Founder of Planet Patrol, she leads global efforts to eliminate single-use plastics and litter. A cancer survivor turned paddleboarding trailblazer, Lizzie has achieved three world firsts on waterways worldwide, using her expeditions to spotlight environmental issues. Appointed MBE and widely recognised with awards including Paddle UK’s Inspirational Person of the Year, she combines lived experience with expert knowledge.

Book A Sustainability and Environment Speaker!

With their varied stories straight from the front line of climate change, sustainability speakers are some of the most popular presenters on the circuit. To book any of the conservationists in this post for your event, simply contact The Sustainability Speakers Agency by filling in our online contact form or by calling a booking agent directly on 02039355587.

22nd- 28th September – Recycle Awareness Week

Since 2004, Recycling Awareness Week (22nd–28th) unites retailers, brands, waste managers, governments, and media to boost recycling habits. The campaign clarifies what can be recycled, inspires correct, consistent action, and motivates communities to cut waste. It’s a nationwide push for sustainability through cross-industry collaboration.

Bringing in a speaker like Josh White, founder of Cano Water, can supercharge your organisation’s commitment to sustainability. His compelling story, industry expertise, and proven track record in combating single-use plastics make him a powerful catalyst for inspiring real, lasting environmental change.

Source: WRAP

1^st October – Energy Efficiency Day

Energy Efficiency Day, on the first Wednesday of October, urges action to cut waste and costs. With cold months ahead and prices high, boosting efficiency eases bills and emissions. Since commercial buildings waste so much energy, smart measures offer major savings – making efficiency a win for wallets and the planet.

To inspire meaningful change, Jan Rosenow is an exceptional speaker to consider. With decades of global experience in clean, fair and efficient energy, Jan blends rigorous expertise with accessible insights. His engaging talks motivate audiences to adopt sustainable practices and drive measurable impact.

Source: Eclipse Energy

10-21st November – UN Climate Change Conference COP30

This year, it’s Brazil’s turn to host COP30, the UN’s annual climate summit. Delegates from 198 nations will review progress and strike new deals to cut emissions. Since 1992, the UN climate framework has driven accords like Kyoto and Paris—making COP a key arena for tackling the climate crisis.

Laurence Tubiana, CEO of the European Climate Foundation and former COP21 Climate Change Ambassador, was instrumental in securing the Paris Agreement. With decades in government, NGOs, academia, and negotiations, she communicates complex environmental issues clearly, inspiring audiences and guiding organisations toward practical, long-term action for a low-carbon, resilient future.

Source: The UN

26^th November – World Sustainable Transport Day

World Sustainable Transport Day spotlights safe, affordable, eco-friendly transport as a driver of growth, wellbeing, and global unity. It champions integrated, low-emission infrastructure—linking roads, rail, water, air, and ports—while conserving resources. Events and campaigns inspire awareness, connectivity, and responsible travel for a greener, more connected world.

Chris Ramsey, founder of Plug in Adventure, is a pioneering advocate for electric mobility. Known for record-breaking zero-emission expeditions, including Magnetic North to South Pole in an EV, he inspires global audiences through captivating talks that blend adventure, innovation, and environmental insight, motivating the shift to cleaner, sustainable transport.

Source: The UN

4^th December – World Wildlife Conservation Day

World Wildlife Conservation Day, marked on December 4th, raises awareness of the urgent need to safeguard endangered animals and preserve their habitats. It draws global attention to the threats wildlife face, including habitat destruction, illegal hunting, and the effects of climate change. The day serves as a call to action for individuals and organisations to work together in protecting biodiversity for future generations.

Frank Pope, a renowned conservationist and CEO of Save the Elephants, is a powerful advocate for protecting wildlife. With a career spanning ocean journalism, environmental advocacy, and television presenting, he has inspired many to value and protect our planet. His leadership in elephant conservation and his passion for marine protection make him an engaging and knowledgeable speaker, capable of motivating audiences to take meaningful action for the environment.

Source: WWF

Hire a Leading Sustainability Speaker Today!

Sustainability awareness days are powerful catalysts, but their impact deepens when paired with an inspiring voice. Bringing in a sought-after speaker turns awareness into action, sparking fresh ideas and real commitment. Equip your workforce with the motivation, insight, and vision needed to drive meaningful change—today and for the future.

If you’re interested in bringing one of our top sustainability entrepreneurs to speak at your next event, don’t hesitate to reach out today! Contact us by calling 02039355587 or by filling out our online contact form.

Here at the Sustainability Speakers Agency, we have selected our top International Day of Women and Girls in Science speakers to hire for events in 2026.

How can you observe the International Day of Women and Girls in Science?

There are many ways that the International Day of Women and Girls in Science can be observed throughout the community. Here are a few suggestions on how we recommend you commemorate this important event:

1. Learn about the contributions women have made to the STEM sectors

Many women have become trailblazers in the world of science. On the 11th of February, it may be beneficial to conduct some research into these inspirational women or hire one of our talented speakers who have empowered thousands of professionals across the UK.

2. Raise money for a science-centric or women’s charity

One of the best ways to raise awareness is to raise money! Fun, community-based activities like bake sales and sponsored events can build unity within your team, all while giving back to worthy causes. Go one step further and shape your event around the annual International Day of Women and Girls in Science theme.

Note: The 2026 International Day of Women and Girls in Science theme has not been announced. In the meantime, why not come up with your own? Pick a theme that resonates with you and your audience.

2. Encourage peers and colleagues to focus on their passions

It can be difficult for women to take the leap into STEM industries on their own. Too often, women veer away from their passions, but this needs to be changed. Encourage your peers and colleagues to take the road less travelled and help them start their journey into STEM.

Top Keynote Speakers to Hire for International Day of Women & Girls in Science:

If you are looking to educate yourself on the topic of International Day of Women and Girls in Science, see our selection of International Day of Women and Girls in Science speakers here:

• Melissa Sterry
• Emily Penn
• Dr. Sally Uren
• Isha Datar
• Ayo Sokale
• Dr. Tara Shine
• Lesley Mitchell
• Christina Lampert

Melissa Sterry

World-renowned design scientist, bio-futurist, and system theorist, Melissa Sterry is best known as the Founder of Bioratorium, Bionic City, and Panarchic Codex. Working on cutting-edge projects, Melissa advises some of the most prominent individuals and organisations worldwide. As a 40 over 40 Women to Watch honouree, her illustrious career has been recognised greatly throughout the community and has allowed her to speak at events for high-profile clients such as Unilever, Toyota, the Ministry of Defence, and the University of Oxford, amongst others.

Emily Penn

Emily Penn is a renowned ocean advocate, skipper, and artist, best known for becoming the Co-Founding Director of eXXpedition. An expert in her field, Emily is also passionate in her roles as a Sky Ocean Ambassador and a Trustee of the Nekton Foundation. Pushing the importance of taking care of the world we live in, she was awarded a BEM by the Queen in the 2021 New Year’s Honours in recognition of her dedication to the environment. Having delivered four profound TEDx Talks, Emily is an experienced speaker and focuses on a variety of sustainability topics.

Dr. Sally Uren

Environmental activist, Dr Sally Uren, is passionate about tackling environmental issues and aims to accelerate the development of a more sustainable future. As the current CEO of Forum of the Future, she advises key global organisations, foundations, and stakeholders on how to increase their sustainability in the workplace. A leading authority in the industry, Sally was appointed an OBE at the 2017 New Year’s Honours, commending her services to sustainability. Having gained vast amounts of valuable knowledge and experience throughout her career, she focuses on topics such as system change and mainstreaming sustainability when hired for events.

Isha Datar

Isha Datar is a pioneering voice in science and food technology, making her an inspiring keynote speaker for the International Day of Women and Girls in Science. As Executive Director of New Harvest, she has championed cellular agriculture, creating sustainable alternatives to traditional farming. With experience spanning GlaxoSmithKline, Perfect Day and Clara Foods, Isha brings a unique blend of scientific expertise and innovation. Her engaging talks challenge perspectives on food, sustainability and the future of science.

Ayo Sokale

Ayo Sokale is a remarkable Chartered Civil Engineer, best known for becoming a proud advocate for STEM careers. Currently fulfilling the role of Project Manager and BIM Lead for the Environment Agency, Ayo has developed an incredibly successful career in the industry and has been nominated for the Top 50 Women in Engineering Under 35 by The Telegraph. Commended for her interests in environmental sustainability, Ayo has become the Co-Founder of Plastic Free Cavendish, which allows her to speak openly about the importance of a sustainable future.

Dr. Tara Shine

Dr Tara Shine is a leading environmental scientist, best known for becoming the Co-Founding Director of Change by Degrees. On a mission to create convenient sustainability, her illustrious career has been devoted to educating the younger generation on the need for change as both a lecturer and keynote speaker. Keen to share her knowledge with others, Tara is a proud member of the Board of Trustees for the International Institute for Environment and Development. With over two decades of experience, Dr Tara Shine is the ideal speaker for a variety of events.

Lesley Mitchell

Lesley Mitchell is a renowned figure within the sustainability industry. Currently working as the Associate Director of Sustainable Nutrition for Forum for the Future, Lesley has worked with numerous high-profile clients to implement positive change towards a more sustainable future. With a successful career in sustainability to her name, she has also become the proud Co-Creator of the Good Egg Awards, a nomination that champions organisations that are committed to farm animal welfare. A keen advocate, Lesley is now looking to share her expert knowledge at events across the UK.

Christina Lampert

Christina Lampert is a highly respected sustainability professional, best known for driving sustainability within businesses as an advisor and keynote speaker. Now working as the Director of Growth & Innovation for HowGood, she has devoted her career towards the world of ingredient and product sustainability, allowing companies to source products that are regenerative. Having recently been awarded the Leadership, Ethics, and Organisational Sustainability Senior Award from St Joseph’s University, Christina has become a highly sought-after speaker to focus on a variety of environmental topics.

Hire an International Day of Women and Girls in Science Speaker Today!

If you are looking to book an inspirational female speaker for the International Day of Women and Girls in Science, don’t hesitate to contact one of our dedicated booking agents on 0203 9355 587 or by completing our online contact form.

Consumer Behaviour

Consumer behaviour is evolving as climate change becomes personal – 85% of consumers report experiencing its disruptive effects in their daily lives. This growing awareness is fuelling demand for sustainable and ethically made products. More people are choosing brands that align with their environmental values, signalling that sustainability is no longer optional but essential for long-term business relevance and success.

Sources: Statista, United Nations, United Nations

Sustainability and Business

Businesses are increasingly answering the call to address sustainability and ESG challenges. Many are setting ambitious net-zero targets, investing in renewable energy, and redesigning supply chains to reduce environmental impact. ESG reporting is becoming standard practice, with companies measuring their social and environmental performance alongside financials. From cutting emissions to supporting local communities, businesses are recognising that sustainability drives resilience, reputation, and long-term growth. It’s not just about responsibility – it’s a strategic shift shaping the future of business.

Sources: Arbor, IBM, PwC, NielsenIQ Brandbank

Book an Sustainability Speaker to Inspire Change

Hiring a sustainability speaker can inspire your workforce by bringing fresh perspectives, real-world insights, and practical strategies to address climate change. Their expertise can ignite passion, encourage behavioural change, and align your team with environmentally responsible goals. Such speakers foster a culture of accountability and innovation, helping your organisation recognise its role in creating a greener future. Motivated employees are more likely to champion sustainability initiatives and contribute meaningfully to lasting change.

Kate Brandt

Kate Brandt, Google’s Sustainability Officer since 2015, has led groundbreaking environmental initiatives across global operations. A former US Federal Chief Sustainability Officer and Cambridge graduate, she has influenced both government and corporate sustainability strategies. At Google, she champions the circular economy and integrated, futureproofed practices. Recognised by Forbes and the US Navy, Kate is a leading voice in sustainability, inspiring audiences to align business success with environmental responsibility.

Pia Heidenmark Cook

Pia Heidenmark Cook is a globally recognised leader in corporate sustainability, best known for driving IKEA’s shift to responsible sourcing, clean energy, and circular business models during her 13-year tenure, culminating as Chief Sustainability Officer. Her leadership helped IKEA gain global acclaim for decoupling growth from emissions. With a background in environmental management, Pia has influenced sustainability across sectors, from hospitality to retail. She co-authored “Embedding Sustainability” in 2024 and holds advisory roles with Bupa, Decathlon, and others. A sought-after speaker, she combines strategic insight with practical action, inspiring businesses to embed ESG into operations for lasting impact on people and planet.

Martin Eberhard

Martin Eberhard, best known as the Co-Founder and former CEO of Tesla Motors Inc., is a leading expert in sustainable innovation and electric vehicles. With over two decades of experience, he played a key role in developing Tesla’s Roadster and shaping the company into an EV powerhouse. After leaving Tesla in 2007, he held senior roles at Volkswagen, SF Motors, and Inevit Inc. Since 2018, he has led Iveni Inc., focusing on EV battery safety. Eberhard is a sought-after speaker, frequently advising corporations on sustainability strategies and future-proofing their businesses through clean technology and innovative practices.

Christopher Raymond

Christopher Raymond, Boeing’s Chief Sustainability Officer since 2020, has been with the company since 1990, earning a reputation as a respected leader in aviation. With degrees in aeronautical engineering and business, he began as an engineer and rose through various leadership roles, including Vice President of Autonomous Systems and Sustainability Strategy. He has championed Boeing’s environmental, social, and governance (ESG) priorities, ensuring its sustainable growth. A key voice in aviation, he contributes to global initiatives like the Clean Skies for Tomorrow Coalition and advises multiple organizations. Raymond’s deep industry knowledge and ESG expertise make him a sought-after speaker and thought leader.

Alexandra Palt

Alexandra Palt is the Vice President and Chief Sustainability Officer of L’Oréal, as well as Vice President of the L’Oréal Foundation. A leading voice in sustainability, she spearheads the L’Oréal for the Future programme, aiming to meet ambitious 2030 goals, including reducing the company’s environmental footprint by 60% and ensuring all products provide social or environmental benefits. Passionate about social equity, she has championed women’s and asylum rights and founded the Fabric of Society. As a sought-after sustainability speaker, Alexandra inspires corporate audiences with her drive to create a more inclusive, sustainable world through innovation and responsible leadership.

Hire a Top Sustainability Entrepreneur Today!

If you’re interested in bringing one of our top sustainability entrepreneurs to speak at your next event, don’t hesitate to reach out today! Contact us by calling 02039355587 or by filling out our online contact form.

What is Sustainable Entrepreneurship?

Sustainability entrepreneurship involves launching businesses that generate economic value while fostering social and environmental responsibility. Rather than focusing solely on profit, these entrepreneurs aim to balance financial success with positive impact. Their ventures often integrate circular economy principles, ethical labour standards, and environmentally conscious practices, such as using sustainable materials and reducing carbon emissions. These businesses, ranging from clean tech to sustainable agriculture, resonate with a growing base of mindful consumers, and support the United Nations Sustainable Development Goals.

Sources: London School of Business Administration & Forbes

Why is Sustainability Good for Business?

Sustainability is crucial for modern business success. As consumers and investors become more environmentally conscious, businesses that embrace sustainable practices stand out. These initiatives enhance brand reputation, attract loyal customers, and foster employee retention. Sustainability also signals long-term viability and can provide a competitive edge. Beyond ethical benefits, it offers cost savings and long-term financial advantages. By prioritising sustainability, businesses demonstrate care for more than profits, creating a positive legacy and ensuring continued success in an increasingly eco-conscious market.

Source: Forbes

Who are the Top Entrepreneurs Changing the World with Sustainable Business!

Based on opinion polls conducted across 154 sustainability-themed events between 2022 and 2024, The Sustainability Speakers Agency has compiled a list of the Top Sustainable Entrepreneurs to Hire for 2025.

1. Pierre Paslier
2. Richard Reed & Jon Wright
3. Amrit Chandan
4. Charlot Magayi
5. Craig Sams
6. Sarah Ratty
7. Kaushik Kappagantulu
8. Dr Cosimo Maria Palopoli
9. JB Straubel
10. Charlie Szoradi

Pierre Paslier

Pierre Paslier is the co-founder and CEO of Notpla, a pioneering company offering sustainable packaging solutions made from seaweed and plants. His innovative work addresses the global plastic crisis, with Notpla’s biodegradable products offering a natural alternative to plastic. Awarded an Earthshot Prize for his efforts in waste reduction, Pierre has had a significant impact on sustainable design. His expertise in packaging and design makes him a sought-after speaker, offering valuable insights into solving the climate crisis through sustainable innovation.

Richard Reed & Jon Wright

Richard Reed and Jon Wright are celebrated sustainable entrepreneurs, best known as Co-Founders of Innocent Drinks. From a humble market stall, they built Europe’s leading smoothie brand, driven by ethical values and environmental responsibility. Pioneering innovations like 100% recycled plastic bottles and sourcing local ingredients, they placed sustainability at the heart of business success. Both continue to inspire through Jam Jar Investments, backing eco-conscious start-ups like Graze and Deliveroo. Their leadership, from launching The Innocent Foundation to influencing corporate sustainability strategies, marks them as influential voices in green business. Their legacy proves profit and purpose can go hand in hand.

Amrit Chandan

Amrit Chandan is a pioneering entrepreneur and the Co-Founder and CEO of Aceleron, a UK-based company focused on sustainable and reusable battery solutions. A recognised leader in the field, Amrit has been named on Forbes 30 Under 30 and awarded for his contributions to engineering and sustainability. He holds a PhD in Chemical Engineering and has worked with TATA Motors and Cenex on low-carbon technologies. Through Aceleron, Amrit is tackling battery waste in the electric vehicle industry by advancing lithium-ion batteries for the circular economy. His innovative approach and partnerships, such as with the Shell Foundation, aim to preserve global resources for future generations.

Charlot Magayi

Charlot Magayi is a remarkable social entrepreneur and the founder of Mukuru Clean Stoves. Growing up in one of Nairobi’s largest slums, she witnessed the harmful impact of charcoal cooking on both health and the environment. Motivated by a personal tragedy, she created an innovative stove that significantly reduces pollution, using alternative materials like biomass. In 2022, Charlot won the Earthshot Prize, highlighting her commitment to tackling climate change. With a vision to reach millions, she continues to lead in sustainable innovation. Charlot is a respected sustainability speaker, dedicated to promoting eco-friendly solutions and advocating for a cleaner, greener future.

Craig Sams

Craig Sams is a prominent sustainable entrepreneur, known for co-founding Green & Black’s, the world’s first Fair Trade-certified organic chocolate brand. His entrepreneurial journey began with a vision for a macrobiotic restaurant and later expanded to ethical fashion and organic food. A passionate advocate for sustainability, equality, and climate change, he co-founded several eco-conscious businesses, including Carbon Gold Ltd and Judges Bakery. His dedication to promoting organic and Fair Trade products has made a significant impact on the food industry. As a speaker, he shares his extensive knowledge on sustainability, offering valuable insights into ethical business practices.

Sarah Ratty

Sarah Ratty is a leading sustainable entrepreneur and a pioneering force in the fashion industry. As the Sustainable Fashion Creative Mentor at the Creative Mentor Network, she has been instrumental in integrating sustainability into design. In the 1990s, she founded Conscious Earthwear, an eco-friendly fashion label, making her a trailblazer in sustainable fashion. Later, she established Ciel, an award-winning eco-fashion brand. Ratty’s innovative use of sustainable materials and eco-conscious luxury has garnered global recognition, with collaborations with brands like Whistles and Dr. Martens. Her work has been showcased at prestigious venues, and she is a sought-after speaker advocating for a greener future in fashion.

Kaushik Kappagantulu

Kaushik Kappagantulu, Co-founder and CEO of Kheyti, is a distinguished sustainability entrepreneur, recognised for his innovative Greenhouse-in-a-box. This award-winning solution, which won the Earthshot Prize in 2022, helps small-scale farmers reduce climate risks, conserve resources, and increase yields. By cutting water usage by 98% and boosting crop output seven-fold, it supports the poorest farmers facing unpredictable weather and droughts. With over 12 years of experience in social enterprises, Kaushik has previously scaled B-Able, a social initiative for school dropouts. An IIT Kharagpur graduate and Columbia MBA holder, Kaushik’s work continues to transform rural communities in India.

Dr Cosimo Maria Palopoli

Dr Cosimo Maria Palopoli is an influential Italian entrepreneur, renowned for co-founding IUV, a company dedicated to creating sustainable, biodegradable packaging for the food, beverage, and packaging industries. With a background in Food Technology and Science, Dr Cosimo’s innovation in biopolymers has significantly advanced sustainability. Recognised globally, including by Forbes 30 Under 30, Dr Cosimo’s work has earned him numerous accolades, positioning him as a leading figure in sustainability and a key driver of a greener, more sustainable future.

JB Straubel

JB Straubel, co-founder of Tesla Inc., is a leading entrepreneur in sustainability, renowned for his work in renewable energy and waste solutions. As the CEO of Redwood Materials, which he founded in 2017, Straubel focuses on large-scale lithium-ion battery recycling. His innovative approach tackles e-waste by designing environmentally conscious processes for recycling and remanufacturing. A former CTO at Tesla, Straubel played a crucial role in developing the company’s battery technology and the Gigafactory. With a deep commitment to climate action, he continues to shape the future of sustainability through his businesses and as an influential speaker, promoting corporate responsibility and innovation.

Charlie Szoradi

Charlie Szoradi is a leading sustainability entrepreneur with over 30 years of experience in high-performance architecture, sustainable living, and next-gen agriculture. Founder of award-winning organisations like GREENandSAVE and Independence LED Lighting, he has pioneered cost-effective, clean-tech solutions. His work on LED lighting earned the Green Business of the Year Award, and his insights have been featured by top institutions like Wharton and the Green Building Council. As an author and speaker, Charlie’s expertise drives global sustainability advancements, making him a top entrepreneur in the field.

Hire a Top Sustainability Entrepreneur Today!

If you’re interested in bringing one of our top sustainability entrepreneurs to speak at your next event, don’t hesitate to reach out today! Contact us by calling 02039355587 or by filling out our online contact form.

What Are The Different Types of Renewable Energy?

There are several types of renewable energy, including wind, solar, hydroelectric and bioenergy. Wind power is the largest source of renewable electricity in the UK, generated by onshore and offshore wind farms. Solar energy captures sunlight using panels, converting it into electricity via the photovoltaic effect. Hydroelectric power uses flowing or falling water, including waves and tides, to spin turbines and generate electricity. Bioenergy involves burning organic materials such as plants and food waste. Though it releases carbon dioxide, it is considered renewable as the materials can be regrown, absorbing carbon over time. These sources offer cleaner alternatives to fossil fuels.

Source: National Grid

What Are The Challenges of Renewable Energy?

One of the main challenges of renewable energy in the UK is its inconsistency. Solar and wind power depend on weather, making it difficult to produce a steady supply of electricity year-round. Unlike fossil fuels, which provide constant output, renewables can be unpredictable. To address this, there’s a growing push to develop better energy storage solutions, such as advanced, cost-effective batteries. These would store excess power generated during optimal conditions for later use. However, many renewable technologies are still developing and have yet to fully integrate into society at the same scale and reliability as fossil fuels. The transition remains ongoing.

Source: Institute of Energy and the Environment & Forbes

Who are the Top Trending Renewable Energy Expert Speakers to Hire in 2025?

Based on opinion polls conducted across 112 renewable energy-themed events between 2022 and 2024, The Sustainability Speakers Agency has compiled a list of the Top Renewable Energy Speakers to Hire for 2025.

1. JB Straubel
2. Heather Zichal
3. Andy Pag
4. Martin Eberhard
5. Peggy Liu
6. Paddy Lowe
7. Dale Vince
8. Isobel Sheldon
9. Jan Rosenow
10. Chris Ramsey
11. Bertrand Piccard
12. Jeremy Leggett

JB Straubel

JB Straubel, Co-Founder of Tesla Inc. and CEO of Redwood Materials, is a pioneering figure in the field of renewable energy and sustainability. With a background in engineering and a history of innovation at Tesla, including the development of battery cells and the Gigafactory concept, JB has become a global leader in clean energy solutions. His current venture, Redwood Materials, focuses on large-scale lithium-ion battery recycling, addressing critical issues surrounding e-waste. As a speaker, JB is highly regarded for his ability to educate businesses on adopting innovative, profitable, and environmentally responsible practices, making him an ideal voice for renewable energy discussions.

Heather Zichal

Heather Zichal is a renowned expert on sustainable energy with a distinguished career in addressing climate change. As the former Deputy Assistant to President Obama on Energy & Climate Change, she played a key role in the 2010 BP oil spill response and in shaping climate policy. Currently, as CEO of the American Clean Power Association, Heather leads efforts in renewable energy, focusing on solar, wind, and energy storage. Her experience spans both public and private sectors, and she has held significant roles with The Nature Conservancy and the Blue Prosperity Coalition. Heather’s expertise makes her a trusted authority on renewable energy and sustainability.

Andy Pag

Andy Pag is a renowned international adventurer and investigative journalist with a powerful mission to raise awareness about the global environmental crisis. Known for his innovative expeditions, such as travelling the world in a scrap school bus powered by used cooking oil, Andy has demonstrated the potential of sustainable transport solutions. His global adventures have garnered media attention, and he now uses his experiences to educate corporate audiences on sustainability. As a sought-after speaker, including TEDx engagements and appearances for companies like Deloitte, Andy captivates audiences with compelling stories that inspire action towards a more sustainable future.

Martin Eberhard

Martin Eberhard is a pioneering figure in renewable energy and sustainable innovation. As the Co-Founder and former CEO of Tesla Motors, he played a crucial role in developing the Roadster series and establishing Tesla as a leader in the electric vehicle industry. With a background in electrical engineering, Martin has dedicated over two decades to advancing eco-friendly transportation. Beyond Tesla, he has held key positions at Volkswagen, SF Motors, and Inevit Inc. Since 2018, he has focused on EV battery and safety standards as the Founder and CTO of Iveni Inc. Martin is a sought-after speaker, helping businesses adopt sustainable practices.

Peggy Liu

Peggy Liu is a leading advocate for renewable energy and sustainability, serving as the Chairperson of the Joint US-China Collaboration on Clean Energy (JUCCCE). With a career spanning over a decade, she has been pivotal in shaping China’s green future through initiatives like smart grids, eco-cities, and energy-efficient products. A recognised World Economic Forum Young Leader, Liu has also founded Food Heroes, a programme promoting sustainable diets. A TEDx speaker and professor, she is passionate about driving societal change. Liu’s expertise and dedication to sustainability make her an ideal speaker to inspire and educate corporate audiences on environmental action.

Paddy Lowe

Paddy Lowe is a distinguished engineer, known for his groundbreaking work in Formula One and sustainable energy. After a successful career with Williams, McLaren, and Mercedes, where he contributed to 12 World Championships, Paddy transitioned to renewable energy. In 2020, he co-founded Zero Petroleum, a company dedicated to producing carbon-neutral synthetic fuels using renewable energy. His leadership led to the first aircraft flight powered entirely by synthetic fuel in 2021. With expertise in innovation and decarbonisation, Paddy is a compelling speaker on renewable energy, advocating for sustainable solutions in sectors like aviation and heavy machinery, making him an ideal choice for promoting sustainability.

Dale Vince

Dale Vince OBE is a renowned British green energy industrialist and the founder of Ecotricity, one of the leading renewable energy companies. Since launching his first wind turbine in 1996, Dale has become a prominent figure in the sustainability sector. His expertise extends beyond energy, having introduced eco-initiatives at Forest Green Rovers FC, the world’s first carbon-neutral and vegan football club. A passionate advocate for renewable energy and climate action, Dale is frequently sought after as a speaker to inspire change. His industry knowledge, political influence, and global impact make him the ideal choice for any event focused on sustainability.

Isobel Sheldon

Isobel Sheldon OBE is a highly respected expert in sustainable and battery technology, recognised globally for her transformative contributions to the renewable energy industry. As the Founder and Principal Consultant at Oakpolytech and a Non-Executive Director at the Offshore Wind Growth Partnership, she has led efforts to optimise the planet’s natural resources. Isobel’s extensive career includes senior roles at organisations like Britishvolt and Johnson Matthey. Awarded an OBE for her work, she is a sought-after speaker, inspiring audiences of all ages with her insights on energy transition and sustainability. Isobel is an exceptional choice for any event focused on renewable energy.

Jan Rosenow

Jan Rosenow is a renowned sustainability expert with a career dedicated to advancing clean, fair, and efficient energy. From founding an environmental group at eight to becoming a leading voice in renewable energy, Jan has worked across various roles, including policy advisor, consultant, and researcher. His expertise is vast, from his early research at the Wuppertal Institute to his current position as Vice President for Global Strategy at the Regulatory Assistance Project. Jan’s ability to engage audiences with practical insights and academic rigour, combined with his extensive experience, makes him an ideal speaker for driving global sustainable change.

Chris Ramsey

Chris Ramsey is a pioneering sustainability advocate renowned for his groundbreaking expeditions, which showcase the potential of electric mobility. His dynamic presentations blend adventure and environmental insight, making him a sought-after speaker. Chris demonstrated his commitment to eco-friendly travel early on, completing a journey through the UK in an electric car in 2012. Since then, he has achieved extraordinary feats, including becoming the first person to drive an electric vehicle from the Magnetic North Pole to the South Pole. With a passion for innovation and real-world environmental impact, Chris is the perfect choice to inspire action and drive the global transition to sustainability.

Bertrand Piccard

Bertrand Piccard is a visionary environmentalist and sustainability expert, renowned for his groundbreaking achievements in clean technology and renewable energy. As a pioneering adventurer, he made history with the first solar-powered global flight and record-breaking feats such as flying around the world in the Breitling Orbiter. His innovative spirit and commitment to environmental sustainability are reflected in his work with initiatives like the Efficient Solution Label and his role with the United Nations Environment Programme. Piccard’s inspiring career and expertise make him the ideal speaker on renewable energy, offering both motivational insights and practical solutions for a sustainable future.

Jeremy Leggett

Jeremy Leggett is a distinguished social entrepreneur, writer, and climate campaigner, widely regarded for his leadership in sustainable energy. As the founder of Solarcentury and SolarAid, he has driven innovation in renewable energy and championed the transition from fossil fuels. With a D.Phil in Earth Science and a background in academia and Greenpeace, Jeremy has a strong scientific foundation. His extensive experience and visionary leadership in projects like Highlands Rewilding make him an ideal speaker on renewable energy. His authoritative insights, shaped by years of advocacy and writing, inspire global audiences to act on climate change and sustainability.

Hire a Speaker for on Renewable Energy!

If you’re interested in bringing one of our passionate renewable energy experts to speak on the importance of renewable energy, don’t hesitate to reach out today! Contact us by calling 02039355587 or by filling out our online contact form.

When is World Water Day 2025?

World Water Day began in 1993, and is celebrated on the 22nd of March 2025.

Source: United Nations

What is the Theme of World Water Day 2025?

The theme for World Water Day 2025 is ‘Glacier Preservation’. As glaciers melt at an unprecedented rate due to rising global temperatures, the water cycle becomes unpredictable, endangering billions reliant on meltwater for drinking, agriculture, and energy. Rapid glacial retreat triggers floods, droughts, landslides, and rising sea levels, threatening communities and ecosystems. Urgent action is needed to reduce greenhouse gas emissions and adopt sustainable water management. The UN calls for global cooperation and local initiatives to protect our frozen water resources, ensuring a secure future for both people and the planet – our survival depends on it.

Source: United Nations & UNESCO

Who are the Top 10 World Water Day Speakers to Hire?

The Sustainability Speakers Agency concludes, based on opinion polls conducted across 98 environmentalism-themed events between 2022 and 2024, that the following speakers are regarded as the best speakers to hire for World Water Day 2025!

1. Frank Pope
2. Pen Hadow
3. Larissa Hale
4. Catherine Jadot
5. Farah Obaidullah
6. Klaus Thymann
7. David Mayer de Rothschild
8. Emily Penn
9. Ellen MacArthur
10. Lizzie Carr

Frank Pope

Frank Pope is a renowned environmentalist and conservationist, celebrated for his deep passion for the ocean and marine conservation. With extensive experience as the world’s only dedicated ocean correspondent for The Times and a seasoned presenter for the BBC, his expertise spans topics from piracy to shipwrecks. As the CEO of Save the Elephants and an ambassador for the Blue Marine Foundation, Frank’s career demonstrates a commitment to safeguarding both marine life and terrestrial wildlife. His corporate speaking engagements on sustainability highlight his ability to engage audiences and promote environmental stewardship in today’s challenging modern society.

Pen Hadow

As a leading polar explorer and ocean conservationist, Pen Hadow has undertaken extraordinary expeditions to both the North and South Poles, witnessing first-hand the alarming effects of warming on fragile ecosystems. His inspiring career, including solo journeys and pioneering Arctic missions, highlights his authority on sustainability. Pen’s unwavering commitment to reducing human impact, combined with engaging anecdotes and a genuine passion for protecting glaciers, undoubtedly makes him the ideal advocate for water conservation and climate action.

Official Feedback for Pen Hadow

Larissa Hale

Larissa Hale is an outstanding speaker on water conservation, blending ancestral wisdom with modern science. As a Yuku Baja Muliku woman and co-founder of the Indigenous Women of The Great Barrier Reef project, she offers deep cultural insights and innovative conservation techniques. Her leadership in training 60 women rangers has empowered indigenous communities while supplying critical data on reef health. Recognised with the Earthshot Prize in 2022 in the Ocean category, Larissa champions the integration of traditional knowledge and Western science. Her work consistently protects a vital ecosystem and preserves cultural heritage, making her an ideal choice to address the challenges of water conservation.

Catherine Jadot

Catherine Jadot is an exceptional speaker for World Water Day due to her vast expertise in biodiversity, climate change and the sustainable blue economy. As CEO of Elemental Solutions Caribbean and a Senior Technical Expert, she offers strategic insights on water conservation and ecosystem restoration. With a PhD in Environmental Sciences from the University of Liège and qualifications from Harvard University, Catherine combines academic rigour with real-world experience. Her roles as a marine biologist and sustainability leader make her uniquely qualified to inspire audiences, promote innovative water management and advocate for nature-based approaches to safeguard vital water resources globally recognised.

Farah Obaidullah

Farah Obaidullah is an inspiring voice in ocean advocacy, dedicating over two decades to the protection of marine ecosystems. With a robust background in biology and environmental technology from Imperial College London, her expertise is profound. As Senior Oceans Campaigner at Greenpeace, she led pivotal initiatives that halted destructive practices and championed the rights of vulnerable marine life. Founder of The Ocean and Us and Women4Oceans, Farah tirelessly advocates for healthy oceans and against deep sea mining. Her engaging storytelling and scientific acumen empower diverse audiences, galvanising them to safeguard our vital oceanic heritage. Her commitment inspires global environmental action.

Official Feedback for Farah Obaidullah

Klaus Thymann

Klaus Thymann is a leading advocate in water conservation, using his extensive environmental expertise and global expeditions to highlight the urgent need to protect marine ecosystems. A renowned Danish explorer, scientist, and photographer, Klaus has traversed all four oceans and documented hidden underwater wonders, such as submerged caves, Danish corals, and Yucatan manatee habitats. Through his charity, Project Pressure, he transforms scientific discoveries into compelling narratives that inspire conservation action. His influential presentations and collaborations with high-profile organisations amplify the critical message of water sustainability, making him a vital voice in combating climate change and preserving our water resources globally.

David Mayer de Rothschild

David Mayer de Rothschild is a leading conservation advocate and inspiring speaker for Water Day due to his daring sustainable explorations and innovative initiatives. As an Emerging Explorer by National Geographic, a Young Global Leader and a Climate Hero, his groundbreaking adventures underscore his commitment to protecting nature. He has completed high-profile expeditions, including traversing the Arctic and pioneering the Plastiki voyage using recycled materials. Through his organisations, Adventure Ecology, the Mayoo Agency and Sculpt the Future, David promotes actionable climate strategies. His ability to engage audiences with persuasive messages makes him an ideal ambassador for conservation and water awareness.

Emily Penn

Emily Penn is a dedicated and passionate ocean advocate who works tirelessly to protect marine environments. As co-founder and Director of eXXpedition, she champions sustainable practices and fights plastic pollution with vigour and commitment. Her work includes organising community-led initiatives and inspiring others to care for the natural world. Emily’s unique approach combines adventure with environmental activism, empowering individuals to embrace sustainable living. She is a respected speaker at corporate events, sharing innovative solutions to safeguard our oceans. Her relentless passion for environmental sustainability and hands-on experience makes her a leading voice for change. Her impact is inspiring and transformative.

Official Feedback for Emily Penn

Dame Ellen MacArthur

Dame Ellen MacArthur is an exceptional choice as a speaker for World Water Day. Her lifelong passion for the ocean and remarkable sailing achievements, including becoming the fastest solo voyager to circumnavigate the equator, demonstrate her deep connection with water. Through her inspiring journey from a young sailor to a distinguished advocate for sustainability, Ellen highlights the finite nature of our planet’s resources. Her leadership in promoting circular economies offers audiences a compelling perspective on protecting water and our environment. With engaging anecdotes and practical insights, she motivates businesses and individuals to value and safeguard our world and its future.

Official Feedback for Ellen MacArthur

Lizzie Carr

Lizzie Carr is a truly inspiring figure in water conservation, celebrated for her pioneering achievements and relentless passion for safeguarding our aquatic environments. As the first woman to paddleboard solo across the English Channel, she has championed sustainable practices and raised awareness about the devastating impact of single-use materials and litter on our waterways. Through her work with Planet Patrol, an award-winning non-profit, Lizzie advocates for cleaner coastlines and healthier marine ecosystems. Her remarkable journey as a cancer survivor and her adventurous spirit empower communities to embrace environmentally responsible behaviours, ultimately protecting our cherished water resources for future generations indeed.

Hire a Speaker for World Water Day Today!

If you are interested in hiring one of our passionate sustainability and climate change speakers to discuss the importance of World Water Day, don’t hesitate in getting in touch today! Contact us by calling 0203 9355 587 or by filling out our online contact form.

At The Sustainability Speakers Agency, we have outlined our top 20 sustainability influencers you should follow in 2025. These popular sustainability speakers use LinkedIn to spread their important message: ‘planet and people over profit’. They have also been regarded as the top sustainability keynote speakers based on agent feedback & verified customer ratings from 200 events between 2022 and 2024.

Nigel Topping

Kicking off our list with the UK’s High-Level Climate Champion, Nigel Topping, regularly updates his 25K+ followers. As a popular speaker, he often shares which events he has been booked for, to generate excitement and interest from audiences. Nigel also discusses the devastating impact of weather disasters, how to decarbonise major cities and his influential role in COP26.

Connect with Nigel on LinkedIn!

Kate Brandt

As Google’s Chief Sustainability Officer, Kate Brandt is responsible for the tech giant’s impact on the planet. On LinkedIn, she often shares Google’s exciting industry advancements, including how their AI will help whales avoid vessel traffic. With over 40K followers, Kate’s positive attitude and optimism for a sustainable future inspire all who engage with her posts.

Connect with Kate Brandt on LinkedIn!

Chris Hines

Chris Hines, the owner of A Grain of Sand and former Sustainability Director at the Eden Project, is a popular LinkedIn influencer. He is the first to support the endeavours of his peers and direct his followers to the other sustainability champions tackling climate change. Celebrating his own achievements, Chris also promotes the exciting events he is invited to speak at, on topics surrounding sustainability.

Connect with Chris Hines on LinkedIn!

Tara Shine

Tara Shine is an inspiring LinkedIn voice with over 13,000 followers. As CEO of Change by Degrees, she shares practical ways individuals and businesses can live more sustainably. Her engaging videos highlight positive changes that make a real impact, making her a must-follow for sustainability leadership and insight.

Connect with Tara Shine on LinkedIn!

Heather Zichal

As the Chief Executive Officer of the American Clean Power Association (ACP), Heather Zichal is one of the world’s leading sustainability champions. The ACP leads businesses away from traditional energy sources and towards a cleaner, renewable future, and supports the infrastructure required to achieve carbon-zero. Heather’s followers keep up such endeavours on her LinkedIn page.

Connect with Heather Zichal on LinkedIn!

Ayo Sokale

A Chartered Civil Engineer, former Deputy Mayor and Councillor and passionate advocate for sustainability, Ayo Sokale combines politics with science to tackle climate change. She is a passionate advocate for going plastic-free and regularly shares with her LinkedIn followers her favourite eco-swaps. Ayo is a must-follow sustainability champion!

Connect with Ayo Sokale on LinkedIn!

Lucas Joppa

Lucas Joppa, Microsoft’s Chief Environmental Officer, boasts over 20K LinkedIn followers. His audience regularly tunes in to hear his latest sustainability strategies, including Microsoft’s open-source Cloud for Sustainability. The first to celebrate eco-themed awareness events, every business owner should follow Lucas Joppa to stay up to date with the fight against climate change.

Connect with Lucas Joppa on LinkedIn!

Jez Roze

Jez Rose is famed on LinkedIn for his entertaining and engaging posts. A speaker of many talents, he developed the world’s first certified carbon-neutral honey farm, an incredible feat of sustainability. On LinkedIn, Jez shares updates about Honey & Co Bee Farm, his latest philanthropic ventures and exclusive speaking engagements.

Connect with Jez Rose on LinkedIn!

Adam Henson

Famed television presenter, Adam Henson, is a director at Adam Henson’s Cotswold Farm Park. He is committed to sustainability, protecting the British farming industry and supporting small business owners, passions that make Adam popular among corporate users. Between pictures of adorable farm animals and posts about his latest presenting roles, Adam’s personality shines through.

Connect with Adam Henson on LinkedIn!

Kate Wylie

As the Chief Sustainability Officer at CHANEL, Kate Wylie spearheads the global brand’s sustainability strategies. She recently shared on her LinkedIn that Chanel No.5 is now made from recyclable glass, an incredible feat that has set the standard for other perfume products. Without compromising on quality, Kate continues to prove that sustainability does not have to come at a cost.

Connect with Kate Wylie on LinkedIn!

David Erasmus

David Erasmus, Chairman of Our Carbon, is committed to coaching businesses and helping them achieve carbon neutrality. His LinkedIn showcases his long career in philanthropy, including David’s latest role – enabling the UK to become carbon negative by 2030. If you want to follow a sustainability influencer with a positive outlook, David Erasmus is a must!

Connect with David Erasmus on LinkedIn!

Jessica Sansom

The food and drink industry is one of the biggest hurdles to overcome in our quest for sustainability. At the forefront, leading the charge, is Jessica Sansom, the Sustainability Director at Huel. On her LinkedIn, Jessica outlines her role at Huel, which includes minimising Huel’s impact on the environment, ecosystems and communities by working with farmers.

Connect with Jessica Sansom on LinkedIn!

Isha Datar

Isha Datar is a self-titled ecosystem builder and executive director of New Harvest. She shares the latest articles and posts on cellular agriculture, which many believe to be essential for a sustainable future. She is at the forefront of the food evolution and is regularly booked for events to educate, engage and entertain audiences of all industries.

Connect with Isha Datar on LinkedIn!

Peggy Liu

Named the TIME Hero of Environment, Peggy Liu has also been described as the ‘Green Goddess of China’ by Global Times and a key “shaper of US-China relations” by Foreign Policy. On her LinkedIn, Peggy shares details of her role as Chairperson of the Joint US-China Collaboration on Clean Energy, which is committed to sustainable changes in China.

Connect with Peggy Liu on LinkedIn!

Alexandra Palt

Alexandra Palt is the Chief Corporate Responsibility Officer at L’Oréal and Executive Vice-President of the Fondation L’Oréal. On her LinkedIn, Alexandra shares updates about her mission for sustainability and inclusive corporate governance, key topics of an equal, ethical future. From posts on fighting discrimination to embracing renewable energy sources, Alexandra is a must-follow.

Connect with Alexandra Palt on LinkedIn!

Chadden Hunter

As a producer and director on several BBC environmental shows, like Planet Earth and Frozen Planet, Chadden Hunter has witnessed first-hand the impact of climate change. He is a popular wildlife filmmaker and regularly shares with his LinkedIn followers behind-the-scenes of their favourite BBC documentary. Now, Chadden is an Executive Producer at Wildbear Entertainment, so stay tuned for more updates!

Connect with Chadden Hunter on LinkedIn!

Emily Penn

Sky Ocean Rescue Ambassador for Sky, Emily Penn, is committed to protecting our seas and oceans. Her LinkedIn features the events and campaigns that Emily has attended, including rubbing shoulders with Royalty to share anecdotes from her adventures. With over 7K followers, if you are passionate about ocean conservation, follow Emily Penn.

Connect with Emily Penn on LinkedIn!

Pia Heidenmark Cook

Following her 14-year career at IKEA as their Chief Sustainability Officer and Senior Advisor, Pia Heidenmark Cook shares her latest speaking events on her LinkedIn profile. She boasts over 14K followers and is popular for her posts on corporate sustainability, ESG, and renewable energy. For business owners, Pia is a must-follow, as her LinkedIn is full of practical sustainability strategies.

Connect with Pia Heidenmark Cook on LinkedIn!

Rebecca Marmot

As Unilever’s Chief Sustainability Officer, Rebecca Marmot is dedicated to transforming the organisation’s impact on the planet. On top of celebrating her connections’ climate-positive campaigns, she also posts about female empowerment and the importance of equal leadership within sustainability. Rebecca is going beyond ‘eco-friendly’ to promote climate resilience.

Connect with Rebecca Marmot on LinkedIn!

Edna Odhiambo

Edna Odhiambo has been an Independent Climate Consultant for over a decade. Her services include public speaking, training, stakeholder engagement and more, the details of which Edna shares on her LinkedIn profile. Engaging, authentic and entertaining, Edna shares her recent publications and promotes her speaking events on her profile.

Connect with Edna Odhiambo on LinkedIn!

Book a Sustainability Champion Today!

To book any of the environmental and sustainability speakers mentioned in this post, contact us by filling in our online contact form or by calling a booking agent directly on 02039355587.

What is Net Zero

Net Zero is defined as the target of achieving a balance between the greenhouse gases that are being emitted into the atmosphere and the greenhouse gases that are being taken out. When the quantity of gas added equals what we take away, net zero is reached.

Source: National Grid

Why is Net Zero Important?

As a society, more needs to be done to combat climate change. Becoming net zero is an important factor in combatting climate change, with the International Panel on Climate Change stressing that “lower greenhouse gas emissions in 2030 lead to a higher chance of keeping peak warming to 1.5°c”.

Source: IPCC

How Can Net Zero Be Achieved?

Transitioning to a net zero society will be one of the biggest challenges that humankind ever faces. To become net zero, we must completely change our way of life, altering everything from how we produce products to how we consume them. One of the most significant contributing factors to climate change is fossil fuels, so the move to renewable energy sources will dramatically reduce carbon emissions.

Source: United Nations

What is Net Zero by 2050?

Net Zero by 2050 is an initiative that has devised a pathway to achieving net zero CO2 emission by the year 2050, encouraging the global energy sector to achieve net zero and minimise their impact on the planet.

Source: IEA

The Official Best Net Zero Speakers To Hire

The following speakers have received highest client ratings & positive agent feedback over 3 consecutive years, positioning them as the official best Net Zero keynote speakers to hire in 2025:

• • Sue Garrard
  • Mike Barry
  • Mike Coupe
  • Crispin Matson
  • Lucas Joppa
  • Alexandra Palt
  • Steve Howard
  • Pia Heidenmark Cook
  • Göran Carstedt
  • Michael Pawlyn
  • Sally Uren
  • Pen Hadow
  • Elena Morettini
  • Hakan Nordkvist
  • Maria Agazio
  • Nigel Topping

1. Sue Garrard

Former EVP of Sustainable Business Development and Communications at Unilever

A renowned thought leader on sustainable business, Sue Garrard has forged a successful career orchestrating the instrumental sustainable living plan at Unilever. As the EVP of Sustainable Business Development and Communications at Unilever, Sue was responsible for establishing sustainability as a driver of brand growth – with their sustainable living brands growing 67% faster than other brands. Recently, Sue has also established a reputation as an expert on becoming net zero, having sat on the expert panel advising the Ministry of Defence on the development of a net zero carbon strategy.

Placed at number 13 on the Top 100 Women Sustainability Influencers Worldwide list by Forbes, Sue is a popular keynote speaker to detail her knowledge of sustainable business and a net zero society.

2. Mike Barry

Former Director of Sustainable Business for Marks & Spencer

A leading advocate for sustainability, Mike Barry is famed as the former Director of Sustainable Business for Marks and Spencer. Developing and implementing Marks and Spencer’s ground-breaking sustainability programme, titled Plan A, Mike was responsible for delivering a revolutionary £750m of business benefits with aspects such as zero waste and 100% renewable electricity. Having also helped to establish carbon neutrality across Marks and Spencer stores, offices and warehouses, Mike is considered a preeminent authority on the race to become net zero.

Named Sustainable Business Innovator of the Year by the Guardian Group, Mike is now hired as a preeminent authority on sustainable business, advising businesses on how they too can negate greenhouse gases and reduce their impact on the planet.

3. Mike Coupe

Former CEO of J Sainsbury Plc

A leading figure in the retail industry, Mike Coupe has forged a respectful career as the CEO of Sainsbury’s. Having spearheaded the takeover of Argos and Habitat with the Home Retail Group, Mike has established a strong reputation for business transformation and growth. During his time as the CEO of Sainsbury’s, Mike was highly passionate about sustainability, announcing the supermarket’s mission for sustainability and achieving net zero carbon emissions by 2040. Under his supervision, Sainsbury’s invested £1 billion into achieving net zero – recognising that ‘living well now also means living sustainably’.

Having reduced Sainsbury’s carbon emissions by 35% during the 15 years he worked for the company, Mike engages audiences with his expertise on lowering carbon footprints and embedding sustainability practises company-wide as a passionate net zero speaker.

4. Crispin Matson

UK Director of Ramboll Energy and Westmill Wind Farm

For the past 30 years, Crispin Matson has pioneered the energy industry with his passion for sustainability. Overseeing the installation, development and usage of renewable energy systems, Crispin has been a driving force behind countless renewable energy projects throughout the UK – from solar power and biogas to geothermal energy. As a member of the ICE London Energy Panel, Crispin encourages people to consider the role they play in climate change. Promoting scientific and policy developments within the energy industry, Crispin also emphasises the importance of moving toward a net zero-carbon economy.

Now hired as a passionate sustainability and net zero speaker, Crispin delivers a comprehensive understanding of why the world needs to use more renewable energy sources. As UK Director of Ramboll Energy and Westmill Wind Farm, don’t miss out on the authoritative sustainability expertise of Crispin Matson.

5. Lucas Joppa

Chief Environmental Officer and Environmental Scientist for Microsoft

Lucas Joppa has forged a reputation as a preeminent authority on sustainability, accelerating action to combat environmental issues worldwide. Professor Adjunct at Yale University and Chief Environmental Officer at Microsoft, Lucas is dedicated to educating the world on the importance of sustainable living and protecting the environment. As the Chief Environmental Officer at Microsoft, Lucas is developing the intersection of technology and the environment, spearheading research into ecological conservation. Also United Nations Environment Programme World Conservation Monitoring Centre Fellow and Associate Editor in Chief of the Ecological Society of America, Lucas is dedicated to seeing a more sustainable and environmentally friendly future.

Awarded the 2014 Distinguished Service Award and the 2016 USERN Prize, Lucas is now a popular speaker for a range of events centred around sustainability. Dedicated to accelerating the move toward a sustainable future and the importance of becoming net zero, don’t hesitate in hiring Lucas Joppa today.

6. Alexandra Palt

Executive Vice President and Chief Sustainability Officer of L’Oréal

Currently the Vice President and Chief Sustainability Officer of L’Oréal, Alexandra Palt is a dedicated sustainability pioneer who is on a mission to reach L’Oréal’s sustainability agendas by 2030. Pushing to go beyond the business model of L’Oréal, Alexandra is spearheading the L’Oréal For The Future programme and striving to make 100% of L’Oréal’s products have a social or environmental benefit. Now hired as a net zero speaker, Alexandra details how she is reducing the environmental footprint of L’Oréal by 60%.

Responsible for launching the Women4Climate events, Alexandra is now hired as a zealous advocate for sustainability and achieving net zero emissions. Pioneering sustainable business at L’Oréal, Alexandra is a fantastic choice when looking for a net zero speaker.

7. Steve Howard

Former Chief Sustainability Officer of IKEA and Co-Founder of WE MEAN BUSINESS

Pioneering environmental change in the corporate sphere for more than two decades, Steve Howard is famed for his former role as the Chief Sustainability Officer of IKEA. For six years, Steve worked at the helm of IKEA, pioneering the development of their People and Planet Positive Scheme and designing sustainable products. Having also invested €3 billion in renewable energy and ensured environmental performance, Steve most recently became the Co-Founder of WE MEAN BUSINESS, a collective of organisations, investors and businesses dedicated to combatting climate change.

Continuing his impactful work since leaving IKEA, Steve has become the Co-Chair of the Environmental and Natural Resources Global Future Council and an Advisory Board Member of Sustainable Energy for All. Dedicated to ensuring the longevity of our planet, don’t hesitate in hiring Steve Howard as a net zero speaker today.

8. Pia Heidenmark Cook

Senior Advisor & Former Chief Sustainability Officer of IKEA

Pia Heidenmark Cook is an influential figure in the realm of sustainability, who is widely responsible for the sustainability strategy of the global retail giant, IKEA. Famed as the former Chief Sustainability Officer at IKEA, Pia was tasked with developing the sustainability goals of the company and fulfilling such visions. From ethical practises surrounding wood and cotton to winning the Circular Economy Award from the WEF, Pia’s influence on IKEA has been exemplary. As of 2022, Pia has begun work as a Member of the Board of Advisors for Bupa, advising their sustainability committee.

Having delivered the TEDx talk How IKEA is Growing its Business Whilst Shrinking Emissions, Pia is now a popular choice as a net zero speaker, accelerating the move towards negating greenhouse gas emissions and their impact on the planet. Hire Pia Heidenmark Cook today to learn how to lead a sustainable business.

9. Göran Carstedt

Former President of IKEA North America and Advisor to The Clinton Climate Change Initiative

Göran Carstedt has enjoyed a respectable career as an expert on sustainability, formerly having worked as the President of IKEA North America, implementing environmental strategies across IKEA’s North American division. Having also been the Head of IKEA Retail Europe and a member of the IKEA Group Management Board, Göran has solidified his expertise across the retail industry and his reputation as a preeminent authority on sustainability. Aside from his work with IKEA, Göran is also famed as the former Senior Director of the Clinton Climate Change Initiative, responsible for collaborating with 40 of the largest cities worldwide in tackling climate change.

A seasoned speaker, Göran has previously delivered the TEDx talk Leadership for a Sustainable Future and is a popular choice when looking to hire an expert speaker on becoming net zero. Delivering future-proofed strategies for sustainable business, don’t hesitate in hiring Göran Carstedt as a net zero speaker today.

10. Michael Pawlyn

Lead Architect of The Eden Project and Author of Biomimicry in Architecture

A renowned architect, Michael Pawlyn is famed for his revolutionary concepts as the former Lead Architect of The Eden Project. Commended for his regenerative and nature-based designs, Michael is an expert at integrating sustainability into architecture and the future of buildings for a circular economy. Having also contributed to the design of other sustainable projects such as Las Palmas Water, the North Wales Tidal Energy Project and the EcoRainforest, Michael is dedicated to finding nature-based solutions to the world’s biggest challenges.

Author of Biomimicry in Architecture and Director of Exploration Architecture Limited, Michael is now a highly popular choice as a net zero speaker for events. Dedicated to creating architecture that complements the circular economy, Michael is a revolutionary figure spearheading the move to a net zero future.

11. Sally Uren

CEO of Forum for the Future

Sally Uren is a leading catalyst for transformational change in the realms of sustainability and the environment, currently working as the CEO of Forum for the Future. Delivering its mission of achieving a sustainable future, Sally works with global organisations to address the importance and complexity of sustainability. Focussing on sustainability across food, energy, clothing and shipping, Forum for the Future has benefitted from Sally’s expertise since 2013 – expertise built as the former Founder of Casella Stranger, a leading sustainability consultancy group.

Having formerly worked with brands such as Burberry, Kimberley Clark and Kingfisher, Sally has also judged the Queen’s Award for Sustainable Development and helped to define Net Positive. Appointed OBE for Services to Sustainability, don’t miss out on the expertise of Sally Uren as a net zero speaker at your next event.

12. Pen Hadow

Arctic Explorer and Ocean Conservationist

A leading polar explorer and ocean conservationist, Pen Hadow has dedicated his career to preserving our planet. As an explorer, Pen became the only person to complete a solo expedition from Canada to the North Pole and was the Founder and Leader of the Catlin Arctic Survey. Also the Director of the Arctic Mission Programme and Founder of The 90North Foundation, Pen is one of the most revolutionary figures of arctic and ocean conservation.

Named Hero of the Environment by TIME Magazine, it comes without question that Pen is a preeminent authority on how to best protect the planet. Now hired as a net zero speaker, Pen emphasises the importance of reducing greenhouse gas emissions in preserving the Earth’s ecosystems and species.

13. Elena Morettini

Global Head of Sustainable Business for Globant

Tackling climate change one business policy and campaign at a time, Elena Morettini is the Director of Globant’s Sustainable Business Studio and Co-Founder of Because Energy Matters. An expert on ESG, energy transitions and corporate sustainability, Elena offers a range of practical guidance for businesses looking to join the ‘green’ economy. Having also led a Task Force on Energy, Resource Energy and Sustainability, Elena is an expert on advising organisations on how they can become carbon neutral and climate positive through enhanced tech adoption.

President of the Energy Transitions Commission, Elena is also highly sought after as a net zero speaker – engaging audiences on how they too can become carbon neutral and net zero.

14. Hakan Nordkvist

Head of Sustainability for IKEA Group

A leader with a human-centric vision, Hakan Nordkvist is famed as the Head of Sustainability Innovation for the IKEA Group. Joining IKEA in 2001, Hakan has worked his way through the ranks, orchestrating several ground-breaking sustainability projects along the way. Hakan’s stand-out projects include the IKEA Clean Energy Service, operating in 13 countries across the globe as one of the largest clean energy services available. Also responsible for IKEA’s circular business agenda, Hakan is dedicated to protecting the planet with innovative sustainability practices.

A pioneer of sustainability, Hakan is now a popular choice as a net zero speaker, emphasising the importance of negating greenhouse gases and environmental impact. Having sat at the helm of IKEA’s sustainable business, don’t miss out on the expertise of Hakan Nordkvist today.

15. Maria Agazio

Co-Founder of Equitable Solar Solutions

Maria Agazio is a dedicated sustainability professional, who is on a mission to implement solutions across society that allow commercial and residential buildings to operate efficiently in their surroundings. Also dedicated to diverting materials from landfill and generating renewable energy, Maria is famed as the Co-Founder of Equitable Solar Solutions – a company that provides low-income families with access to solar energy. Named the American Solar Energy Society Emerging Young Professional, Maria is committed to protecting the environment through renewable energy sources.

Named on the Forbes 30 Under 30 List, Maria has solidified her reputation as a preeminent authority on sustainability. Highly knowledgeable on various aspects of sustainability, Maria will provide an authentic yet fresh approach to achieving net zero.

16. Nigel Topping

On a mission to build a global community of climate champions dedicated to halving emissions by 2030, Nigel Topping is famed for his role as the UN Climate Change High-Level Champion for COP26. Attending the COP26 UN Climate Change Conference, Nigel passionately advocated for the importance of increased awareness of climate change, developing strategies to reduce the levels of greenhouse gases that are being released into the atmosphere. Transforming corporate responsibility in relation to the environment, Nigel is combatting climate change on a global level by securing policies such as the 2015 Paris Agreement on Climate Change. Having formerly delivered the TEDx talk We Need to Green the Economy Whilst Restarting It, Nigel is a seasoned speaker whose expertise on net zero should not be missed.

Awarded the Companion of the Most Distinguished Order of Saint Michael and Saint George, Nigel is a highly influential figure determined to rewrite the fate of our planet. Having also formerly supported the UK Presidency of the 2021 UN Climate Change Conference, Nigel is on a mission to accelerate action to achieve the goals of the Paris Agreement. With detailed expertise on climate change, Nigel is now hired to speak on becoming net zero, educating audiences on how they can balance their emissions to reduce their impact on the planet. When looking for an expert speaker on sustainability strategy, look no further than Nigel Topping.

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If you want to learn more about becoming net zero, don’t hesitate to book a net zero speaker today. Get in touch with one of our dedicated booking agents to secure the perfect net zero speakers for your next event, by calling directly on 0203 9355 587 or completing our online contact form.