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“The science: why mature tree preservation is critical”

7 – 9pm Wed June 5

by Tufts Professor Emeritus William Moomaw

in-person only at Cornerstone Co-Housing, Harvey St, North Cambridge


Prof. Moomaw’s research shows that humanity has always depended upon trees. This continues today in urban environments where trees in “cool corridors” reduce heat in neighborhoods, cleanse the air, and provide emotional relief to city dwellers. The MBTA's cutting down 70 trees at Alewife continues our tree loss from ongoing large projects. Worse yet is the city's failure to maintain mature trees (over two dozen cut down because the city didn't fix the Danehy Park irrigation for months in the 2022 drought).

Now-retired, but still very active, Dr. Moomaw was a professor of International Environmental Policy at the Fletcher School of Law and Diplomacy, Tufts University. He was also the founding director there of the Center for International Environment and Resource Policy (CIERP) and the Tufts Climate Initiative, and co-founder of the Global Development and Environment Institute. Dr. Moomaw was lead author on numerous reports for the United Nations Intergovernmental Panel on Climate Change and was a member of the 2007 IPCC panel that, with former Vice President Al Gore, was awarded the Nobel Peace Prize.

Prof. Moomaw co-authored the above figure; click here for complete text


The Cambridge4Trees mission is to reverse the collapse of the city's tree canopy. The first action was to organize watering of street trees by residents during the height of the historic 2022 heat waves and drought. Actions and advocacy planned for 2024 include:

  • Fix the Tree Protection Ordinance to actually protect trees
  • Advocate for city management to fully fund & implement the 2019 Urban Forest Master Plan
  • Advocate for city management to reorganize parks & tree management to prevent another Danehy Park tree disaster
  • Recruit residents to water trees, especially during droughts and heat waves


"Cambridge4Trees" is "Cambridge Citizens for Liveable Neighborhoods, Inc." (CCLN), a 501(c)(3) non-profit corporation serving the community since 1994. CCLN has been registered with the city "doing business as" the "Association of Cambridge Neighborhoods" for many years. To better serve this new mission started in 2022, CCLN has now registered "doing business as" Cambridge4Trees.

Marty Bakal, Clerk

Heather Hoffman, Esq., Treasurer



Cambridge4Trees is helping to Save Linear Park in North Cambridge by fully supporting Friends of Linear Park. Our city's planned re-design will damage or destroy over 80 mature trees. Click here to learn more and how to help.

100% Complete Linear Park Architectural Drawings dated Nov 17 2023 waiting at MBTA for approval to become "Final". These were obtained by Cambridge4Trees at the end of Feb 2024.


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