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Join City Arborist Dave Lefcourt and Assistant City Arborist Abby Bentley outside City Hall from 10 a.m.-12 p.m. Members of the community are invited to come learn about Cambridge's Urban Forest and get a free seedling along with coloring book and crayon giveaways.

The City of Cambridge has added its first Mack LR Electric trash collection truck to the City’s fleet, marking another critical step in helping the City meet its larger climate action and emissions reduction goals. This Mack LR Electric truck is the first fully electric trash truck in operation in Cambridge.

Join Mayor Sumbul Siddiqui to celebrate the winners of the 2026 Cambridge City Nature Art Challenge and view their art on display. We will have food and nature art activities for all ages. This event is presented as a part of the Cambridge Public Library Nature Club.

Effective Monday, March 22, the Massachusetts Travel Order will be replaced with a Travel Advisory. The new travel advisory will urge all persons entering Massachusetts, including returning residents, are advised to quarantine for 10 days upon their arrival if they have been out of the state for 24 hours or more.

Cancelled: Monthly meeting of the Police Review & Advisory Board held virtually via Zoom to include an update from the Sexual Assault Response Team (SART) at Cambridge Police Department and Boston Area Rape Crisis Center (BARCC) about the case review process and updated officer guidelines for dealing with victims and survivors.

The City of Cambridge is notifying residents, businesses, and visitors of multiple temporary street closures throughout Fourth of July weekend due to several large community events. These include the Boston Pops Fireworks Spectacular, the Fourth of July Weekend Block Party and Vintage Market, and the US Army’s 250th Birthday celebration.

Due to a calculation error, the Cambridge case counts reported for April 12 reflected an over count. The Cambridge Public Health Department has since reconciled the discrepancy in positive case counts among Cambridge residents (in non-institutional settings) and newly reported cases in skilled nursing and assisted living facilities.

The Small Business Challenge Grant offers Cambridge businesses, business associations, and groups of neighborhood businesses the opportunity to secure one-time grant funding in increments of $1,000 for well-designed projects that bring together neighborhood business interests around shared goals of improved design, promotion, and business resilience in a commercial area.

The Phoenix Landing will produce Mardi Gras in June, bringing the spirit of community joy and celebration to Lafayette Square (intersection of Mass Ave and Main St). Legless Lizard will bring the New Orleans-style Mardi Gras tunes. The event is planned for June 26, 7:00 – 9:00 p.m.

UPDATE: Due to the impacts of this week's winter storm, this walk has been canceled. There will be another walk on Wednesday, February 25th. Register for that walk at this link. Join us for a morning walk at one of the most renowned bird watching spots in Cambridge, Mount Auburn Cemetery! We will help you identify birds, learn birdwatching tips and tricks, and familiarize yourself with migratory birds as well as those that can be spotted all year round. A limited supply of binoculars will be available. The walk will meet at the Collins Branch Library at 64 Aberdeen Ave at 10:15 am. We will walk to Mt. Auburn Cemetery together (about a five minute walk). Please try to be on time as we will leave shortly after 10:15! Registration is required. This event can only accommodate a certain number of participants. One registration is good for one person. If you do not register, you cannot participate. Those on the waitlist will be contacted if a space becomes available.