In the face of climate change, we realized we had a choice -
Sink or Swim? We chose to swim!

Our actions, or lack there of, will decide how warm of a planet we are going to live on. Whether it's minor inconveniences like flooded basements, or major concerns like category 5 storms. It's up to us to decide.

Humanity has accomplished impressive feats and has shown great strength and cooperation in challenging times. We know we have the ability to rise to this occasion. What we've already accomplished in renewable energy is years ahead of projections and this growth will continue.

But we need to move at a faster pace. And to do that, we need you. 


We are mobilizing Cape citizens to support local and statewide efforts to promote Earth-friendly policies, advance renewable energy interests and oppose new fossil fuel infrastructure.

350 Cape Cod is a local chapter of 350 Mass and of, an international climate movement founded in 2008 by Bill McKibben and colleagues at Middlebury College in Vermont. 350 is named after 350 parts per million (ppm), which is the estimated safe concentration of carbon dioxide the atmosphere can sustain.

We use online campaigns, grassroots organizing, and public actions. We host monthly meetings to discuss how we can effectively take action to sustain a livable climate.

We typically meet the first Thursday of the month at the Sturgis Library in Barnstable at 7pm. All are welcome.

Below you will find a few of our current priorities. 

supporting responsible development of offshore wind


well-sited solar energy projects


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supportING state AND federal level





promoting a move towards zero waste

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Want to swim? 

We welcome everyone who wants to join together to protect this place that we depend on and love so dearly. Whether you're interested in being an active member who attends monthly meetings, or just someone who is looking to stay informed and help out when needed, we'd love to hear from you.

If you want to join, email

Here are a few other ways you can help:

  • Contact your local, state and federal reps, frequently, and tell them they need to act on climate NOW. These folks rarely hear about climate issues and therefore are not motivated to act. It’s up to us to speak up!

  • Contact your federal rep and connect with a local chapter of Citizens' Climate Lobby to help push for a federal carbon pricing. And while you’re at it, tell them to stop giving the fossil fuel industry $20 billion a year in subsidies!

  • Contact your state rep and tell them we need to have a price on carbon, starting at no less than $50 a ton, as it’s an efficient and business-friendly way to reduce emissions.

  • Write a letter to the editor of your local paper about your ecological concerns, whether on it’s about climate change, the sacredness of clean water, or any other environmental issue that speaks to you, it’s important that we raise awareness of these issues and also offer solutions to provide hope.

  • Buy a copy of Drawdown, which is based on Project Drawdown, the most comprehensive plan ever proposed to reverse global warming and presents a path forward that can roll back global greenhouse gas emissions within thirty years.

  • Divest any fossil fuel investments you may have and choose a bank that does not lend money to support fossil fuel projects [Hint: Most big banks support fossil fuel projects].

  • Practice the 5Rs: Refuse, Reduce, Reuse, Reform, Recycle in every aspect of your life. We are the ones who drive the demand of fossil fuels and therefore we are the ones that have the power to make a difference.

  • Eat for a climate stable planet. Try to eat meat-free, buy organic and local, don’t waste food and if you can, grow your own.

  • Use energy wisely and invest in renewables if possible. Small changes you can take add up, it just takes some getting used to.

  • Green your commute. Transportation’s a big chunk of our emissions so take public transit, ride a bike, car-share, switch to an electric or hybrid vehicle if possible, and fly less.