350.org is turning the page on the fossil fuel industry and building a clean, just future by connecting powerful grassroots climate movements around the world.

What's in a name? Ours, 350, is a number. And a very important one. It is a reference to 350 parts per million (ppm) – the concentration of carbon dioxide (CO2) in the atmosphere considered the safe …

Climate change affects us all but makes inequalities even deeper. 350.org is fighting for climate solutions rooted in justice, putting people and communities first.

Take action and help us build a world powered by renewable energy! Join our online campaigns, become a monthly donor, or form a local group. There are plenty of ways to get involved – check …

Besides 350.org, she currently serves on the Board of Directors of the ACLU of Northern California and Oasis Legal Services, a nonprofit law firm providing asylum services to LGBTQIA+ refugees.

Ahead of the UN COP15 Summit in Copenhagen and 350.org’s first Global Day of Action, people in 181 countries mobilize to demand a binding climate treaty to stay below 350 parts per million (350 ppm) …

Nov 17, 2025 · In just nine days, support for a fossil fuel phase-out road map has grown from 1 to 62 countries, from both developed and developing countries, analysis by 350.org shows.

Feb 7, 2025 · Help 350.org build a powerful climate movement. We believe in a safe climate and a better future — a just, prosperous, and equitable world built with the power of ordinary people.

Uruguay is proof in point that the renewable energy transition isn’t just possible — it’s powerful. In less than a decade, the country shifted from fossil fuel dependence to sourcing over 98% of its electricity …

He is a founder of 350.org, the first planet-wide, grassroots climate change movement, which has organized twenty thousand rallies around the world in every country save North Korea, spearheaded …