Sustainability Climate Speakers of 2026

34 sustainability climate (2026) speakers on Mezzo - including Ben Lamm, Staffan Helgesson, and Sophia Kianni. Each with the talks, gig history, and co-appearances to back it up.

Together they've given 47 talks across 31 events.

34 speakers · showing 1–24

Ben Lamm

Co-Founder & CEO, COLOSSAL BIOSCIENCES | Pioneering De-Extinction & Sustainability

🇺🇸United States5 talks

Biotech & Health Tech

Sustainability & Climate

Staffan Helgesson

European Tech Venture Capitalist | Early Creandum Founder Investing in AI and Climate

🇸🇪Stockholm, Sweden6 talks

Climate Action & Net Zero

Venture & Fundraising

Sophia Kianni

Climate activist | Breaking down language barriers in environmental action

4 talks

Climate Action & Net Zero

Climate Activism

Kyungsin Kim

CEO, PAULUS | Pioneering Sustainable Luxury Design

🇰🇷South Korea3 talks

Luxury & Premium

Sustainable Business Models

Philip Johnston

Space Tech Innovator | Harvard & Wharton Alum Solving Global Energy Challenges

🇺🇸United States3 talks

Climate Action & Net Zero

Space Exploration

Seth Bannon

Founding partner at Fifty Years | Investing in breakthrough technologies solving global challenges

🇺🇸San Francisco, United States4 talks

Climate Action & Net Zero

Venture & Fundraising

Christopher Sacca

Climate investor | Proving decarbonization can be profitable at scale

🇺🇸United States3 talks

Climate Action & Net Zero

Sustainability & Climate

Sophie Williams

Anti-Racism Advocate | Environmental Scientist

🇺🇸United States2 talks

Climate Action & Net Zero

Social Justice & Equity

Paul Polman

Former CEO Unilever | Sustainable Business Leader

🇬🇧United Kingdom4 talks

ESG & Sustainable Business

Sustainable Business Models

Bertrand Piccard

Adventurer & Visionary | Pioneering Sustainable Aviation

🇨🇭Switzerland4 talks

Climate Action & Net Zero

Antonio Guterres

Former Portuguese Prime Minister | UN Secretary-General Leading Global Climate and Refugee Protection Efforts

🇺🇸United States4 talks

Climate Action & Net Zero

Foreign Policy & Diplomacy

Maja Göpel

Sustainability Economist and Systems Thinker Transforming Global Economic Paradigms

7 talks

Economics & Society

Sustainability & Climate

Lubomila Jordanova

Climate Tech Entrepreneur Driving Sustainable Business Solutions

3 talks

Climate Action & Net Zero

Sustainable Business Models

Greg Jackson

Climate Tech Entrepreneur | Founder of UK's Largest Green Energy Supplier

🇬🇧United Kingdom8 talks

Climate Action & Net Zero

Nicola Sturgeon

Former First Minister of Scotland | Climate & Policy Advocate

🇬🇧United Kingdom5 talks

Climate Action & Net Zero

Public Policy

Philipp Schröder

New Energy Pioneer | Former Tesla Germany Managing Director

🇩🇪Hamburg, Germany4 talks

Climate Action & Net Zero

Sustainable Business Models

EM

Eleni Myrivili

Urban Climate Innovator | TED Speaker Transforming City Heat Challenges

🇬🇷Athens, Greece6 talks

Climate Action & Net Zero

Urbanization & Cities

LD

Louis Dreyfus

Co-CEO of Louis Dreyfus | Transforming Global Agriculture

🇫🇷France2 talks

Food Culture & Systems

Sustainable Business Models

AO

Amy O'Brien

Sustainability Leader | ESG Strategy & Purpose-Driven Business

🇮🇪Dublin, Ireland2 talks

ESG Strategy

Purpose Driven Business

LK

Lian Pin Koh

Conservation Scientist | Protecting Biodiversity & Addressing Climate Change

🇸🇬Singapore2 talks

Climate Action & Net Zero

Conservation & Biodiversity

UL

Ursula von der Leyen

President of the European Commission | Leading Europe's transition to carbon neutrality

2 talks

Climate Action & Net Zero

Democracy & Governance

Janet Napolitano

Former Homeland Security Secretary | Climate Action & Higher Education

🇺🇸United States1 talk

Sustainability & Climate

LL

Larry Li

Founder & CEO | Scaling Sustainable Technology

🇺🇸United States2 talks

Startup Founder Journey

Sustainable Business Models

Teresa Ryan

Indigeneity-ecologist advocate

4 talks

Environmental Justice