Climate Change Speakers

Hire the Top Climate Change Speakers

Climate change keynote speakers help organisations understand one of the most pressing challenges facing businesses, governments and communities today. Bringing expert insight, practical solutions and inspiring perspectives, they equip audiences to navigate environmental change, sustainability goals and the transition to a low-carbon future. Their expertise is increasingly valuable as the World Meteorological Organisation’s State of the Global Climate Report 2025 confirms that 2015-2025 were the hottest 11 years on record, with 2025 reaching approximately 1.43°C above the 1850-1900 average (WMO). By hiring a climate change speaker, organisations can raise awareness, encourage action and prepare for a rapidly changing world.

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Kate Brandt

Chief Sustainability Officer at Google & Former Federal Chief Sustainability Officer at The White House

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Dr Lucas Joppa

Former Chief Environmental Officer at Microsoft, Founder of AI for Earth, Chief Sustainability Officer at Haveli Investments, PhD Ecologist & Global Sustainability Strategist

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Alexandra Palt

Lawyer-turned-Sustainability Leader, Executive Vice President & Chief Sustainability Officer of L’Oréal

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Melanie Nakagawa

Sr Product Director at Meta, Former Google Gemini Product Lead, AI & Product Innovation Executive

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Göran Carstedt

Former President & CEO of IKEA Europe & North America, Former President & CEO of Volvo Svenska & Senior Advisor to President Bill Clinton on the Climate Change Initiative

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Andy Pag

Innovative Eco-Adventurer, Former BBC Broadcast Journalist, TEDx Sustainability Speaker & Earned silver for Best Documentary at the PPI Radio Awards

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Pia Heidenmark Cook

Former Group Chief Sustainability Officer at IKEA, Senior Advisor & Author of 'Embedding Sustainability'

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Roger Ballentine

Energy Policy Expert, President of Green Strategies, Former White House Climate Change Task Force Chairman

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Angus McCrone

Freelance Writer on Clean Energy & Financial Markets, Former Bloomberg Chief Editor of New Energy Finance, Senior Editor at Trove Research & Founder of Twowaymarkets Ltd

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Sir Tim Smit

Creator of The Eden Project & The Lost Gardens of Heligan & Author of 'Eden'

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Dr Sally Uren

Executive Director & Chief Acceleration Officer of Forum For The Future, Former Director of Environmental Management & Sustainability at Casella Stanger, Appointed OBE for Services to Sustainability & Named Forbes Top 100 UK Leading Environmentalist

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Steve Howard

Vice Chairman of Sustainability at Temasek, Former Ikea Global Sustainability Director & Board Member of GenZero

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Heather Zichal

Global Head of Sustainability at JPMorgan Chase, Former Obama White House Climate Advisor & Clean Energy Executive

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Steve Backshall

Award-Winning Wildlife Presenter of The BBC's "Deadly 60", Explorer, Conservation Advocate & Bestselling Author of "Wildlings"

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Nigel Topping

High Level Champion for Climate Action, COP26, Global Ambassador for Race To Zero & Race To Resilience & Former CEO of WE MEAN BUSINESS

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David Mayer de Rothschild

British Environmentalist, Eco-Adventurer, Founder of The Lost Explorer, Chairman of Voice for Nature Foundation

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Tony Juniper

Chairman of Natural England, Former Executive Director of Friends of the Earth, Special Advisor to the Prince of Wales & Author of 'Spix’s Macaw'

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Marga Hoek

Founder & CEO of Business For Good, Former CEO of the Dutch Sustainable Business Association & Three-Time Golden Award-Winning Author of 'The Trillion Dollar Shift' & 'Tech For Good'

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Sir Jonathon Porritt

Co-Founder of Forum for The Future, Bestselling Author of "Love, Anger & Betrayal" & Co-Chair of The Green Party

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Christiana Figueres

Former Executive Secretary of the UN Framework Convention on Climate Change, Co-Founder of Global Optimism & Recognised as one of the World's Most Influential Leaders by Time Magazine

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Henry Tricks

Chairman of Natural England, Former Executive Director of Friends of the Earth, Special Advisor to the Prince of Wales & Author of 'Spix’s Macaw'

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Lord David Howell

Former UK Secretary of State for Energy & Transport, Senior Foreign Office Minister, International Relations Leader & One of Britain’s Most Experienced Voices on Global Affairs & Energy Policy

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Mike Barry

Former Director of Sustainable Business for Marks and Spencer, Director of Mikebarryeco, Co-Founder of Planetry Alliance & Advisor on Sustainable Business for Tala Consultancy School

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Håkan Nordkvist

CEO of the Net Zero Company, Former Head of Sustainability Innovation for IKEA & Member of the Board of Advisors of the Cambridge Institute for Sustainability Leadership

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Melissa Sterry

World-Renowned Design Scientist, Founder of Bioratorium, Bionic City & Panarchic Codex & Inductee into the Global Women Inventors & Innovators Network Hall of Fame

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Gina McCarthy

The First White House National Climate Advisor, 13th Administrator of the Environmental Protection Agency & Influential Climate Change Speaker

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Claire O'Neill Official Speaker Profile Picture

Claire O’Neill

Former UK Cabinet Minister For Energy & Clean Growth, COP26 President-Designate, Global Climate Leadership Advisor

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Karen Pflug Official Speaker Profile Picture

Karen Pflug

Chief Sustainability Officer at IKEA, Former CSO at Ingka Group, Innovation Director at Nike, & Apparel Director at Reebok

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Pierre Paslier

Co-founder & CEO of Notpla, Earthshot Prize Winner, Former Packaging Engineer for L'Oreal & TEDx Speaker

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Charlot Magayi

Founder of Mukuru Clean Stoves, Winner of The Earthshot Prize 2022, Recognised as one of TIME’s 100 Climate Leaders of 2025 & Named on the Forbes 30 Under 30 list

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Grace Vanderhei

Nuclear Fuels Engineer & Clean Energy Advocate at Constellation Energy, Miss America 2023 & Named to the Forbes 30 Under 30 Energy list

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Hannah Ritchie

Data Scientist, Senior Researcher at the University of Oxford, Deputy Editor at Our World in Data & 2x Author

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Roger Spitz

Renowned Futurist, President of Techistential, Founder & Chair of Disruptive Futures Institute, Author of five bestselling books & Ranked as one of Global Gurus Top 15 Futurists Worldwide

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Jacqueline O’Donovan OBE

CEO & Founder of ODPR, Former Managing Director of O'Donovan Waste & a Fellow of the Chartered Institute

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William Kamkwamba

Inventor, Bestselling Author of ‘The Boy Who Harnessed The Wind’, Co-Founder of The Moving Windmills Project & Leading Voice in Renewable Energy Innovation

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Juan Verde

Former Adviser to The Clinton & Obama Administrations, Founder of The Advanced Leadership Foundation & One of The 100 Most Influential Latinos Committed to Climate Action

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Dr Alix Willemez

Creator of #ThisIsWhatAsexualLooksLike, Visiting Research Fellow at KCL & First Asexual Person to Win a British LGBT Award for 'Outstanding Contribution to Communities'

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Tom Rivett-Carnac

Global Optimism Founding Partner, Former UNFCCC Senior Advisor, Bestselling Climate Author & Podcaster

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Isha Datar Official Speaker Profile Image

Isha Datar

Biotechnologist, Cellular Agriculture Pioneer & Executive Director of New Harvest Driving Global Innovation in Sustainable Food Systems

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Martin Eberhard

Co-Founder & First CEO of Tesla, EV Innovation Pioneer & Former Director of Electric Vehicles at Volkswagen

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Lewis Pugh

Founder & CEO of The Lewis Pugh Foundation, World-Leading Endurance Swimmer, UN Patron of the Oceans & Author of "Achieving The Impossible"

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Adam Henson

Leading British Farmer, The BBC's "Countryfile" Presenter, Owner of the Cotswold Farm Park & Award-Winning Champion on UK Agriculture

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Rain Newton-Smith

Chief Executive of the CBI, Former Chief Economist, World Economic Forum Young Global Leader & Leading UK Expert on Global Economics and Sustainable Growth

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Chris Hines

Founder of a Grain of Sand & Surfers Against Sewage, Former Sustainability Director of The Eden Project, Named as a Daily Telegraph's Eco Hero & Awarded an MBE

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Akala

Award-Winning Rapper, Author, Activist, Oxford Union Speaker & Founder of The Hip-Hop Shakespeare Company

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Adriaan Kamp Official Speaker Profile Picture

Adriaan Kamp

Founder of 'Energy For One World' Who Worked on The Paris Agreement & UN Sustainable Development

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Adam Greenfield

American Urbanist, Best-Selling Technology Author & Senior Urban Fellow at LSE Cities

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Tony Seba

Futurist, Entrepreneur & Clean Energy Visionary, Co-Founder of RethinkX, Author of “Clean Disruption” & Global Authority on Technology, Sustainability & Disruption

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The cost of hiring a keynote speaker varies depending on several factors. Experience plays a major role; those with a high-profile background or specialist expertise often command higher fees. Similarly, the length of time that a speaker has been active in their field can also influence cost, with established professional speakers typically charging more for their proven insight and practised delivery. Factors such as location also impact the fee that a speaker requests, as travel and accommodation expenses are often added to events that are outside of the speaker’s local area.

For the precise cost of a speaker, it is best to consult one of the London Keynote Speaker Agency’s expert booking agents. Keynote speakers and event hosts can range anywhere from £1000 to in excess of £50,000 for speakers with increased levels of experience and expertise, or celebrities.

The ideal time to hire a keynote speaker depends on the details of your event, but generally speaking, it is always best to book in advance to avoid disappointment. For major awareness days or months, like International Women’s Day or Black History Month, the most in-demand speakers can be fully booked up to a year in advance. Securing your perfect speaker early ensures you get the right fit for your audience, theme and budget. Early booking allows you time to plan, coordinate logistics and create a cohesive event plan.

You can hire keynote speakers on a wide range of topics, from mental health, wellbeing, and diversity and inclusion to artificial intelligence and the future of work. Our speakers inspire audiences with insight, expertise, and lived experience. If you’re looking for a speaker who doesn’t fit within our current roster, get in touch. Our expert booking agents have a global network of speakers and will source the perfect fit for your theme. Whether you need an authority on geopolitics or a leading voice on psychological safety, we’ll match you with the right speaker to elevate your next event.

Keynote speakers are available for both virtual and in-person events. Virtual events became a popular format during the COVID-19 pandemic and continue to appeal to organisers who prefer the flexibility they offer. Hosting online removes the need for a venue, travel, and accommodation costs, making it a practical option for global audiences. Many speakers now deliver their talks virtually through platforms such as Zoom or Microsoft Teams. Whether you’re planning a corporate meeting, webinar, or online conference, our team can help. Contact the London Keynote Speakers Agency to find the best speakers for your virtual or hybrid event.

Many keynote speakers can tailor their content to suit the specific goals, audience, and theme of your event. While we offer a wide range of speakers across many topics, some specialise in customising their talks to reflect your company’s values, objectives, or industry challenges. This ensures the message resonates deeply and delivers lasting impact. Whether you’re hosting a leadership summit, corporate conference, or team-building event, we’ll connect you with a speaker who can adapt their message to your needs. To find out which speakers can personalise their content, contact the London Keynote Speakers Agency for tailored recommendations.

Yes, you can speak directly with your keynote speaker before your event. We organise briefing calls to ensure everything runs smoothly and aligns with your goals. During the call, you’ll have the chance to discuss what you’d like the speaker to focus on, the key messages you want delivered, and how their talk can best serve your business. It’s also an opportunity to cover practical details such as timing, format, and any technical or logistical requirements. These conversations help build a strong connection between you and the speaker, ensuring a confident and well-prepared delivery on the day.