Earth Day’s not until April 22, but Cambridge celebrates Mother Terra on Saturday at the Main Library campus with plenty of sustainability offerings and events.

Public meetings this week look at the city buying the Cambridge Gas Light Co. Building near City Hall; plans to reclaim Jerry’s Pond in North Cambridge; affordable senior housing on Blanchard Road in the Cambridge Highlands; and wrapping up a review of the city’s governing documents.

Public meetings this week look at a zoning study for Broadway, a Union Square Main Streets business model and open space and recreation ideas.

Calls of rodent infestations peaked two years ago at 784 after they were added as an option to the SeeClickFix complaint system in 2020. This year, looking back over the past 365 days leading up to Nov. 23, the reports had dropped by half to 396. 

A popular but flawed test of ticketing instead of towing cars during Cambridge’s street-cleaning season will get a second year, but – with the permission of the state Legislature – adjusted to include higher fines.

Public meetings this week look at the outcome of a street-cleaning test and proposed changes to Cambridge Street and Massachusetts Avenue, ways to get gas cars off city streets and a proposed rooftop garden for the high school.

Public meetings this week look at buildings proposed by Foss Park and Trum Field, a Highland Avenue overhaul, municipal broadband and more.

Highland Avenue is on track to be paved in June at the earliest, but there’s more work to come. A Fire Department Master Plan has advanced too.

Public meetings this week look at building repairs, separating sewage form storm water, keeping the arts thriving, a Somernova expansion and more.

Even Cambridge city contractors still need gas-powered leaf blowers for at least 20 percent of the year, but the lawn equipment could see a phaseout.