We are building a Mass movement for our climate

We organize from the Berkshires to Cape Cod

We lobby for climate justice on Beacon Hill

We collaborate with organizations across Massachusetts

We mobilize with marches and protests

We are building a powerful statewide movement to end the destructive dominance of the fossil fuel industry and transition to a just, equitable, and clean energy economy.

Take Action

There are many ways to fight for climate justice. Find out how you can get involved.

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Find Your Local Node

We have local member-led chapters we call “nodes”. Find one near you.

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Our Working Groups

Working groups are spaces for 350 Mass volunteers interested in special topic areas to meet, learn, and strategize.

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Our 2021-2022 Campaign: Bringing the Green New Deal Home

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Power Lines: News from the Mass climate movement

Hungry for a Future
Apr 05, 2022

Hungry for a Future

From March 15-March 22, 6 members of Climate Courage, the direct action wing of 350 Mass, undertook a hunger strike to stop MMWEC project 2015a,...
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Why Im Fasting Joy
Mar 22, 2022

Why Im Fasting Joy

My name is Joy Gurrie. I am a mother and grandmother living in Ipswich. I retired from MIT’s Linear Accelerator Center in Middleton where I did computer-aided design....
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See more posts

Upcoming Events

Our calendar has information on our working group meetings, webinars, actionars, special events and campaign actions.

For node meetings, see our node calendar.

Upcoming Events

May
18
Wednesday

Climate Cafe May 2022

May 18, 2022
7:00 PM - 8:30 PM (EDT)
Would you like to have a supportive place to talk over your concerns about climate change or climate activism? Now you do! 350 Mass has Climate Cafes that welcome these discussions. This...
May
26
Thursday

Intersection: War, Climate, and Peace

May 26, 2022
7:00 PM - 8:00 PM (EDT)
Did you know that the US military is the world’s largest institutional emitter of greenhouse gases? Military pollution is often overlooked in discussions of the climate crisis. In this webinar,...
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