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As the City of Cambridge's Open Data Portal continues to expand, we are committed to ensuring it remains a vibrant and useful resource. To prevent our portal from turning into a "data graveyard" filled with obsolete data, we're introducing a draft Open Data Retirement Policy—and your feedback is crucial.

To understand our impact on climate change and measure progress over time, Cambridge has committed to doing a greenhouse gas inventory of its emissions at least every five years. This information helps the City understand where emissions are coming from, identify the biggest opportunities to reduce them, and guide the policies and programs that support our goal of reaching net zero emissions by 2050.

Transportation Demand Management (TDM) encourage people to switch from driving alone to walking, biking, taking buses and trains, carpooling, and other sustainable transportation options. The City encourages TDM to help more people get around Cambridge without creating more traffic and greenhouse gas emissions. These and other goals are described in Envision Cambridge.

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.

The City of Cambridge requires that trash, recycling, and compost bins be placed on the sidewalk at 6 p.m. or later on the evening prior to curbside collection day. If you are a Cambridge resident with disabilities that prevent you from following this ordinance, you can apply for an exemption.

Come get creative at Collins! Join your neighbors at this casual, drop-in afternoon craft session. This month, celebrate winter by making snowflakes. We'll provide supplies and instructions to cut traditional snowflakes and advanced 3-D versions using multiple sheets of paper. This month's activity is recommended for people of all ages.

The City of Cambridge and Cambridge Public Health Department (CPHD) will continue to offer free COVID-19 testing for Cambridge residents 4 days per week on with modified hours Wednesdays, Thursdays, Saturdays, and Sundays. The site at 50 Church St. that previously offered testing will be discontinued beginning in June.

Bring a kids' book or two to swap and go home with a new book for yourself! People of all ages who enjoy kids' books are welcome. Please do not bring more than one or two books. You are welcome to take home a book even if you did not bring one. Contributions will not be accepted in advance of the event.

With magic, merry mayhem, and magnificent inflatable dinosaurs, Dinoman will take you on a trip through the Mesozoic Era. Recommended for children ages 4 and up and their caregivers. Funding for Summer Reading has been generously provided by the City of Cambridge, Cambridge Public Library Foundation and Friends of the Cambridge Public Library.

Prepare to be amazed and surprised by a presentation from the Poop Museum, where everyone learns many fantastic, fabulous and fun facts about human, animal and insect poop. Funding for Summer Reading has been generously provided by the City of Cambridge, Cambridge Public Library Foundation and Friends of the Cambridge Public Library.