During the Brookline Select Board meeting on September 16, 2025, significant discussions emerged regarding the potential removal of a large and healthy pin oak tree at Tappan Street, which has raised concerns among residents and environmental advocates. The tree is considered a vital part of the town's tree canopy, contributing to climate change mitigation and providing shade for commuters.

The Massachusetts Bay Transportation Authority (MBTA) initially claimed that the tree needed to be removed to ensure accessibility for new Type 10 train cars expected in 2027. However, conflicting information surfaced during the meeting, with some speakers questioning the MBTA's justification for the tree's removal. They pointed out discrepancies in the width of the new train cars compared to existing models, suggesting that the MBTA may not have fully presented all relevant facts.

Residents expressed frustration over the lack of documentation and schematics to support the MBTA's claims about the tree's encroachment. Speakers urged the Select Board to require proof of the alleged necessity for the tree's removal, emphasizing that decisions should be based on factual evidence rather than convenience. The discussions highlighted a broader concern about balancing infrastructure improvements with environmental preservation.

In addition to the tree issue, speakers raised concerns about the potential impacts of construction on the roots of the pin oak and the need for ongoing tree maintenance. The meeting underscored the importance of community engagement in decision-making processes, particularly when it comes to preserving natural resources in the face of urban development.

As the meeting concluded, it became clear that the fate of the pin oak tree remains uncertain, with calls for further investigation and documentation before any irreversible actions are taken. The Select Board's next steps will be crucial in determining how Brookline navigates the intersection of accessibility and environmental stewardship.