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 …

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.

At 350.org, you’ll work with a team of brilliant, fierce colleagues, tackling one of the greatest issues of our time, in a flexible and collaborative environment. Learn more about who we are, …

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 …

Bill is Founder and Senior Advisor at 350.org and is the Schumann Distinguished Professor in Residence at Middlebury College in Vermont. He is a 2014 recipient of the Right Livelihood …

Dec 3, 2025 · Explore the latest news, press releases and media resources from 350.org, our campaigns and the movement for a world powered by just and accessible renewable energy.

Climate Action Rhode Island (350.org/ri), the grassroots environmental group representing over 4000 Rhode Islanders demanding action on the climate crisis, is pleased to announce...

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.

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.