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 MIT Alumni for Climate Action


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The MIT Alumni for Climate Action (aka MACA) is a non-partisan group of Massachusetts Institute of Technology alumni concerned about
the devastating effects of climate change. We support action at all levels to communicate the urgency of the problem and reduce the risk and damage from climate change. We support science based interventions in the energy, transportation, industry, and agriculture systems such as the rapid development of renewable wind and solar energy capability and elimination of fossil fuel usage to drastically reduce carbon dioxide and other greenhouse gas emissions.

In October 2018, a group of alumni in Maryland sent an open letter on climate change to all candidates running for public office in the state. The letter was signed by more than 100 alumni and sounded the alarm on the effects of climate change. The letter was supported by US Senators and Congressmen, and State Senators and Delegates, and helped pass the Clean Energy Jobs Bill in the state.

In October 2020, a group of alumni from around the US and abroad sent a letter to MIT administration in response to their request for feedback on the 2015 MIT Plan for Action on Climate Change. The letter illuminated certain gaps in MIT’s 2015 plan and outlined a vision for the 2020 plan, including: (1) increasing the campus greenhouse emissions reductions goals, (2) metrics for engagement with the fossil fuel industry, (3) guidance for divestment and moral leadership on climate (4) actions for leadership on development of climate technologies, and (5) broadening climate education on campus.

MACA consists of over 150 members from nearly half of US states and a dozen countries. Our many group actions in progress are listed on our MACA page; check them out to learn more about our current work. The MACA group mission, history, and organization are briefly summarized in a one-page document and our mission, rationale, and supported actions are summarized in our Mission and Action Plan. Background information on climate change and its effects on the state, nation, and world, available from our Educational Resources page and Web Portal.

All MIT Alumni are invited to sign-up to join the MACA Team, and everyone is invited to follow and engage with the group on MIT Open. The MIT Alumni for Climate Action group is a member of the MIT Alumni Energy, Environment, and Sustainability Network (EESN) and the MIT Climate communities.

For a recent report on climate change, see the US Global Change Research Program Climate Science Special Report (CSSR):