Climate Action Day

Some of our 2026 speakers

Rick Davis, Assistant Director for Science and Exploration, NASA's Science Mission Directorate

Alicia Silverstone, actress, author, entrepreneur and activist

Chelsea Clinton, author, advocate and public health expert

HRH Princess Esmeralda of Belgium

David Pallash, The LEGO Group

Coyote Peterson, Wildlife Conservationist, Brave Wilderness

Priyadarshani Joshi, Senior Research and Policy Analyst, GEM Report, UNESCO

Dan Geiselhart, Co-founder and Publisher, Climax

Luca Martinez, conservation filmmaker

Alice Alpert, Senior Scientist, Environmental Defense Fund

Fred Henderson, Impact and Growth Manager, Ecosia

Alphabet Rockers, songwriters and artists

Marissa Ramirez, Senior Director, Strategy, Planning, and Operations, Natural Resources Defense Council

Kal Glanznig, ocean advocate, youth leader and documentary filmmaker

Paul E. Simons, former U.S. Ambassador, clean energy expert, diplomat and educator

Christiana Figueres, climate leader, diplomat and author

Check our 2026 line-up

See all Speakers Check the Schedule Register to get Certificate Download 2025 Press Release

Host a Watch Party

Speaker Guide for Classrooms

Activity Worksheets for Primary Classrooms

Activity Worksheets for Secondary Classrooms

Past visionary voices

Jane Goodall

Awa Ndiaye

Sir David Attenborough

Whoopi Goldberg

Nicole Stott

Shailene Woodley

President Mary Robinson

Helena Gualinga

Julieta Martinez

Macklemore

President Juan Manuel Santos

Edward Norton

Check past speakers

With support of

About

Climate Action Day is a live, online event produced by Take Action Global. During the free event, public figures, scientists, authors, journalists, youth demonstrate and discuss the impact of climate education.
Participants of the Climate Action Project, a six-week initiative involving 9 million+ people across 190+ countries, showcase their findings and solutions for climate change. Past speakers include HRH Prince William, Macklemore, Jane Goodall, Edward Norton, Whoopi Goldberg, David Attenborough, Tony Hawk and many more.