about 350 Silicon Valley

Bring your friends and neighbors! 
We'll build a more powerful climate movement together


350 Silicon Valley is a volunteer-led 501(c)(3) nonprofit dedicated to fighting for climate justice. We mobilize residents of Santa Clara and San Mateo counties for a speedy and just transition away from fossil fuels to 100% renewable energy.

We formed in 2013, in informal affiliation with the international organization 350.org. We collaborate with other local 350 groups and many other partners on issues such as divestment and climate legislation—responding to our supporters' issues and concerns.

Our vision is a vibrant world where climate justice prevails.


It's easy to confuse us with 350.org. 350.org periodically sends out communications to all local supporters. Please note that their policy positions and timing are often independent of ours.

A Healthy Climate is a Just Climate

A donation of any amount you can make today would help 350 Silicon Valley work smarter and harder to address the climate crisis, ensuring we have a just recovery for Bay Area communities, California, and the nation.

Your support is appreciated!