The crowdsourced film “Motherload,” which shows how cargo bikes might save the world, comes to the Brattle Theater on Sunday with a discussion and group ride afterward, brought to town by a small consortium led by vice mayor Jan Devereux.

Extinction Rebellion Massachusetts feels not enough is being done about human-triggered climate change and wants action – not just on such problems as carbon emissions, but on forming a national “Citizens Assembly” to oversee government.

Dating in the age of smartphones and social media has made connecting with others easier than ever, but technology has also made it effortless to break off communication without explanation. The sex-positive group Pleasure Pie offers other ways to break ties.

The Technoskeptic Goes to the Movies series returns May 9 with “The Mosquito Coast,” in which inventor Allie Fox – a sweaty but stern Harrison Ford – moves his family to the jungles of Central America to rebuild civilization according to his ideals.

The dramatic one-act play “The Real Me” returns next week to mark the start of autism awareness month, just short of a year since its U.S. premiere in May at Lesley University.

The buzzy sort of science in which trees will send aid via their roots to neighboring trees that are dying, will kill animals for nutrients and can be trained sort of like dogs gets a whole day of awe-instilled discussion this weekend.

Antonia Grace Glenn returns to Cambridge for the East Coast premiere of her documentary film, “The Ito Sisters: An American Story,” as part of the Boston Asian American Film Festival.

“White Fragility” author Robin DiAngelo comes to the Cambridge Friends School on Thursday for a conversation about race and the future of race relations that may be tough for many in Cambridge to hear.

So where’s the case for impeaching President Donald Trump now? There’s a free book discussion and signing Wednesday explaining it, led by the three authors of a book arguing that in this potential case for impeachment, “The Constitution Demands It.”

Domino’s Pizza has gone from being fodder for stand-up comedy and liberal outrage to a company with a revamped look and mission that now drives discussion over municipal infrastructure. No, really.