Sustainability Speakers

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Climate change is no longer a distant threat. Today, 3.6 billion people already live in areas highly vulnerable to its effects, and by 2050, it’s expected to cause 250,000 more deaths each year through undernutrition, malaria, and heat stress. Businesses, communities, and governments need more than awareness—they need action. Top sustainability keynote speakers inspire that shift. They turn complex data into clear direction, motivating audiences to rethink practices, embrace innovation, and lead meaningful environmental change. Whether addressing corporate responsibility, green technology, or global impact, these expert sustainability speakers spark the conversations that drive action towards a more sustainable future.

Pia Heidenmark Cook Official Speaker Profile Picture

Pia Heidenmark Cook

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

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Kate Brandt

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

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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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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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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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Melanie Nakagawa

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

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Richard Reed

Co-Founder of 'Innocent', Co-Founder of JamJar Investments & Author of 'If I Could Tell You Just One Thing...'

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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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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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Heather Zichal

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

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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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Steve Howard

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

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Göran Carstedt Official Speaker Profile Picture

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 Official Speaker Profile Picture

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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Kate Wylie

Chief Sustainability Officer & President Fondation at Chanel, Board of Advisors of the Dasgupta Review on Economics of Biodiversity & Named as One of the 100 UK Leading Environmentalists by Forbes

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Rebecca Marmot

Chief Sustainability & Corporate Affairs Officer at Unilever, Launched the Unilever Foundation & Ranked #8 in the Global Top 250 Women in Sustainability

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David Mayer de Rothschild Official Speaker Profile Picture

David Mayer de Rothschild

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

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Sir Tim Smit

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

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Crispin Matson

UK Director & Energy Systems Director at Ramboll Energy, Board Director for the Westmill Wind Farm Co-operative & Led the Engineering Design Framework for the 176MW Aalborg District Heat Pump Network Scheme

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Tara Shine

Former Head of Research & Development at the Mary Robinson Foundation – Climate Justice, Co-Founder of B Corp-Certified Social Enterprise Change by Degrees & Named STEM Woman of the Year at the Women in STEM Summit & Awards

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Maja Göpel

Former Secretary General of the German Advisory Council on Global Change, Author of "Rethinking Our World: An Invitation to Rescue Our Future & Ranked as 1 of the 100 Most Influential German Economists by The Frankfurter Allgemeine Zeitung

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Michael Pawlyn

Founder Director of Exploration Architecture LTD, Bestselling Author of 'Biomimicry in Architecture', Creative Collaborator at Hard Art & Awarded a Fellowship in Regenerative Design by the Royal Commission for the Exhibition of 1851

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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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Hannah Ritchie

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

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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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Pierre Paslier

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

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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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Gina McCarthy

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

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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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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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Mike Barry Official Speaker Profile Picture

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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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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Christiana Figueres Official Speaker Profile Picture

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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Marga Hoek Official Speaker Profile Picture

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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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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Angus McCrone Official Speaker Profile Picture

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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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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Kate Humble

Leading Wildlife Presenter of 'Springwatch', 'Autmnwatch', 'Animal Park' & 'Rough Science' & Bestselling Co-Author of The 'Springwatch' & 'Autmnwatch Book'

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Kevin McCloud

Channel 4's Renowned Presenter of 'Grand Designs', 'Grand Designs Abroad' & 'Don't Look Down' & The Founder of HAB

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Jessica Sansom

Chief Impact Officer of EIT Food, Former Head of Sustainability for Innocent Drinks, Sustainability Director for Huel, Sustainable Supply Manager for McDonald's

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Jeff Forshaw

Professor of Particle Physics at the University of Manchester & Author of 'Why Does E=mc^2?'

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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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John Gummer Lord Deben

The UK's Longest-Serving Environment Secretary, Founder of Sancroft International, Chairman of The Climate Change Committee & edie Lifetime Achievement Award Winner

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Jack Stratten

RETHINK Retail Top Retail Expert, Head of Trends at Insider Trends, Retail Futurist, Strategy Advisor & Industry Commentator

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Dame Frances Cairncross Official Speaker Profile Picture

Dame Frances Cairncross

British Economist, Journalist, Former Management Editor of The Economist, Former Rector of Exeter College Oxford

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Lord David Blunkett

Former Labour Home Secretary of State for Education, Employment & Work & Pensions, Bestselling Author & Vice President Of The Royal National Institute Of Blind People

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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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Adam Walker

The First British Swimmer to Complete The Ocean Seven Challenge, Inspirational Speaker & Bestselling Author of "Man Vs Ocean"

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Dr Alix Willemez Official Speaker Profile Picture

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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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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Ayo Sokale

Chartered Civil Engineer, BBC Presenter, STEM Leader, Sustainability Advocate & Neurodiversity Speaker

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Suzie Imber

Winner of BBC 2's "Astronauts: Do You Have What It Takes?", Former NASA Research Scientist, Professor of Space Physics, High-Altitude Mountaineer & Co-Investigator on ESA’s BepiColombo Mission

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Cate Trotter

Innovation Strategist, Transformation Advisor, Founder of Insider Trends & Insider London and Former Senior Manager of Innovation Consulting for GHD Digital Driving the Future of Global Retail

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Sustainability is vital for businesses because it shapes how employees, customers, and investors see them. Two-thirds of employees say their employers aren’t doing enough to address climate change and sustainability, signalling a clear demand for change from within. Companies that take meaningful action reduce costs, attract and retain top talent, and future-proof their operations against regulatory and environmental risks. Beyond compliance, sustainability strengthens brand reputation and builds trust. Businesses that prioritise the planet show leadership, innovation, and accountability—qualities that inspire loyalty and long-term growth in a world where responsible practices are no longer optional but expected.

Top 5 Ways to Be More Environmentally Friendly:

  1. Cut Down on Waste – Carry a reusable water bottle, coffee cup, and shopping bag; avoid single-use plastics whenever possible.
  2. Choose Sustainable Transport – Walk, cycle, car share, or use public transport instead of driving alone.
  3. Save Energy at Home – Switch to LED bulbs, unplug devices not in use, and choose renewable energy suppliers.
  4. Shop Smarter – Support local and ethical brands, buy second-hand, and reduce unnecessary purchases.
  5. Eat with the Planet in Mind – Eat more plant-based meals, buy seasonal produce, and waste less food.

Source: WWF

A sustainability speaker explores how individuals and organisations can reduce their environmental impact and build a greener future. They cover topics such as climate change, renewable energy, circular economies, and corporate responsibility. Many also share practical steps for embedding sustainability into business strategy and culture. Through real-world examples and data-driven insights, they inspire audiences to take meaningful action towards lasting environmental and social change.