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.

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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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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

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

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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Isha Datar

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

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Liz Bonnin

Wildlife Broadcaster and Field Researcher Who Presented Shows Including Big Blue Live, Drowning in Plastic, Meat: A Threat to Our Planet? & Bang Goes the Theory

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Lars Thomsen

Founder & Chief Futurist of Future Matters AG, Leading European Expert on AI, Energy & Technological Tipping Points, Advising Over 800 Global Companies.

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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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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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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.