We believe that the climate movement will best succeed through building a large, intersectional coalition that uses a diversity of tactics. We seek to stay grounded in our guiding principles as we work to combat climate change and advance renewable energy in Massachusetts.

Our Vision

A sustainable society that cherishes the health of the planet and honors all living things.

Our Mission

We are a grassroots organization working to end fossil fuel dependency and secure a just transition to a clean energy future.

Our Work

We advocate for deep systemic environmental and economic transformation through public policy, direct actions, coalitions, education, and community organizing.

Our Values

We believe in grassroots power. The only way we can win a livable future for all is if we build a social movement strong enough to counter the most profitable and influential forces in society that continue to enable the climate crisis.

We believe in partnerships. We seek to build powerful coalitions of climate groups and other progressive organizations that collectively work toward common goals related to climate, jobs, and justice to advance the goals of justice and equity that are essential to a durable democratic system.

We believe in equity and justice. We know that climate change is an issue that intersects with ecological, social, racial, economic, indigenous, and immigrant justice. We seek to advance equity and justice in our campaigns and in our internal operations and show up in solidarity for these other movements’ priorities as our capacity allows.

We believe in science. Policies that address pollution reduction and advance clean energy should be driven by our best understanding of the latest climate science. We advocate for policies and goals based on this science, whether or not such actions are seen as politically realistic in the short-term.


Our Principles

We are persistent, but nonviolent and principled. We do not shy away from confronting the power structure in support of our mission, but we do so in ethical ways that affirm our values and reflect the world we want to see.

We follow norms of democratic accountability. We invest in and believe in our base, and use democratic processes to guide our decisions at both the state and local levels.

We invest in building power and empowering new leaders. We invest in our people-powered movement through deliberate recruitment, trainings, mentorship, and other leadership opportunities.

We listen to and lift up frontline leadership. Those most impacted by climate pollution and other harmful activities of the fossil fuel industry are often able to share the most powerful and compelling stories around its harms, and have unique wisdom around the necessary structure of solutions. We seek their guidance and opinions and amplify their voices, and where possible, partner with them to design and execute campaigns.

We strive to embody the 350.org Organizing Principles and the Jemez Principles for Democratic Organizing.


Our Tactics

350 Mass uses an all-of-the-above approach to organizing to bring sufficient pressure to address the urgency of our climate crisis and the need to reduce greenhouse gas emissions through a just transition off of fossil fuels.

  • We mobilize for marches and demonstrations.
  • We lobby our legislators, draft bills, and work to pass legislation.
  • We write ballot initiatives.
  • We host public forums and webinars.
  • We engage with social media and the press.
  • We educate and inspire.
  • We confront through nonviolent direct action.
  • We build community and engage our partners.
  • We bring the power of the arts to all our work.
  • We compromise when necessary.