This week's calls to action include the following events and activities. (All are free and open to the public, unless otherwise noted.)

ROC Transit Day

Reconnect Rochester will hold its second annual ROC Transit Day on Thursday, June 20. Organizers encourage businesses, community groups, schools, and public offices to support employees, students, and residents who will leave their cars at home for the day. Everyone is encouraged to ride public transit instead of driving. Rochester-area merchants, some as far away as Avon, will offer bus riders deals and offers. Transit riders are invited to partake in a complimentary happy hour hosed by Reconnect Rochester at Murphy's Law, 370 East Avenue, from 5:30 p.m. to 7:30 p.m. The event coincides with Dump the Pump Day, a national effort encouraging people to walk instead of driving. For a complete list of events, participating businesses, and an interactive map of locations: www.ROCtransitday.com.

Climate change film

First Unitarian Church and the Sierra Club will show the film "Do the Math" at 7:30 p.m. on Sunday, June 30. The documentary film examines the rising movement to change the terrifying math of the climate crisis and to challenge the fossil fuel industry. A panel discussion follows the film, which will be shown at 220 South Winton Road. Information: www.350.org/math.

Rally to close Guantanamo

A coalition of antiwar activist groups will hold a "Close Guantanamo Prison" rally at 4:15 p.m. on Thursday, June 20. Some of the activists will wear orange jumpsuits and chains. The event will be held at Twelve Corners in Brighton.