• “Summering with Vultures,” noon at Merryspring Nature Center in Camden. Birder and columnist for The Free Press Don Reimer gives an inside look at a vulture pair raising their chicks last summer from egg to independence. He traces their weekly progress and changes at the nest site.

• “Sailing from Belfast to the Top of Labrador,” 6:30 p.m. at Belfast Free Library. Belfast resident Jonathan Fulford on his recent four-month trip of 4,000 miles with a crew of four in his 28-foot sailboat to the icy tip of Labrador and back. He’ll show slides of icebergs, puffins, polar bears and fiords and talk about how people and animals there are attempting to adapt to climate change. The free public talk is cosponsored by the library and Come Boating! Belfast’s Community Boating Organization.


• Environmental “Teach-In” at Belfast Free Library, at 6 p.m. The Peace and Justice Group of Waldo County sponsors the “teach-in” led by Midcoast Maine Extinction Rebellion. Learn about the worldwide movement of environmental activists confronting the growing threat of the climate crisis. Free and open to all.


• Talk on Science of the Atmosphere, at Camden Public Library, from 6:30 to 8 p.m. Colby College geology professor Bess Koffman explores how and why the atmospheric circulation has changed over time and its impacts on land and marine environments, in a talk presented by Mid-Coast Audubon.

• “Think Brink” Talk on Right Whales at Belfast Free Library, at 6:30 p.m. Expert Mark Dittrick tells how the North Atlantic right whale, the most critically endangered large whale on Earth, could soon face extinction as a consequence of climate change and the warming of the world’s oceans. His free talk is sponsored by Belfast Bay Watershed Coalition, North Atlantic Right Whale BEACON (Bi-national Early Alert Coastal Network) and Belfast Creative Coalition.


• Poetry Reading at Thomaston Public Library, at 5 p.m. Jason Grundstrom-Whitney reads from his first book of poetry, “Bear, Coyote, Raven,” recently published by Resolute Bear Press and nominated for a Pushcart Prize and a National Book Award. The poems explore themes of environmental degradation, violence, and technological troubles and suggest a solution: to connect with the web of life. The reading was rescheduled to this Friday due to inclement weather.

• Sock Hop at Watts Hall in Thomaston, from 6:30 to 9 p.m. With a mix of tunes from the ’50s and ’60s spun by DJ Dan Miller. Snacks and drinks provided. The event is open to all ages, and families are welcome. It’s free, but donations will be accepted. Proceeds will be used by the Watts Hall Community Players to fund their productions and for improvements to Watts Hall. People are invited to dust off and don clothes from 50 years ago.

• 33rd Annual Camden Conference, “The Media Revolution: Changing the World,” Friday to Sunday, live at the Camden Opera House and livestreamed to the Hutchinson Center in Belfast, Strand Theatre in Rockland, and Hannaford Hall in Portland. CamdenConference.org has all the details.


• “Pedaling to Progress: Bicycles from 1800s – 1920s” Opens at Owls Head Transportation Museum, this Saturday. The exhibit explores the golden age of a wheeled machine so versatile and liberating that it permanently changed the landscape of American economics and consumer culture. Also on opening day, the museum will offer a events including Imagination Station from 10 a.m. to noon, offering STEM-based activities for ages 7 to 12, and an entry to the Transport Talks series at 1 p.m. with Kat Johnson from the University of Maine Museum of Art. All activities and access to the exhibit are free with the cost of admission. Those under 18 as well as retired career veterans and active-duty military are admitted for free. The museum is a few miles from downtown Rockland, on Route 73.


• “Maine-ly a Celebration: Fish,” from 12:30 to 3:30 p.m. at Penobscot Marine Museum’s Old Vestry, 2 Church Street in Searsport. The museum celebrates Maine’s bicentennial, inviting everyone to drop in and try their hand at fish prints and origami fish. At 1 p.m., Anna Harris of Maine Ecological Services will talk about the Craigbrook National Fish Hatchery and current pressures on Atlantic salmon in Maine. She’ll also take a look at what’s going on with American eels and alewives. $5 museum members, $8 nonmembers, $20 families, free for kids 7 and under. Weather cancelations will be posted on the museum’s Facebook page.


• “Finding Joyful Movement in Winter,” 6:30 p.m. at Camden Public Library. Hester Kohl discusses how to replace negative thoughts about exercise with positive, empowering thoughts; how to select activities based on your “exercise personality”; and how to use balance, variety, and moderation to make movement a consistent and joyful part of your lifestyle.


• “Global Warming: Moving Beyond the Problem to Solutions,” Thursday, Feburary 27, at 6:30 p.m. at Camden Public Library. Dave Oakes, codirector of the Center for Ecological Living and Learning, will propose what can be done at the individual, family, community, and global levels to resolve the climate crisis. His program will focus on solutions to global warming and include time for participant ideas and sharing.