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 …

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.

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.

Join the Boston node of 350 Mass! 350 Mass is made up of hundreds of highly engaged volunteers all over the state, supported by staff from Better Future Project. 350 Mass educates the public about …

Jan 21, 2026 · As Japan declares snap elections, 350.org calls for progress on climate measures For older press releases or media contacts, visit our media page.

350.org continues moving forward on our work to stop fossil fuel projects and end funding for fossil fuel projects, while strengthening a global climate movement that inspires hundreds of thousands of …

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 Prize, …

Organising + Training Tools for organisers, facilitators and trainers Leading an action, meeting, or training? Find tools and techniques that will help you and the people around overcome obstacles and …

Whether you’re educating your community, running a pressure campaign to pass a climate-friendly policy, or implementing local climate solutions, you can find resources for your projects on 350.org.