The church’s organist Shin-Ae Chun performs a program of organ music by J.S. Bach, including Prelude and Fugue in D Major, Trio Sonata in C Minor, Concerto in D Minor, and Fantasy and Fugue in G Minor. Noon–1 p.m., 517 E. Washington (handicap access on Washington entrance). Free. (734) 663–9376, fbca2.org.

U-M anthropology professor Matthew Hull discusses the unmanaged ecologically disastrous side-effects of banana-growing in the southern Philippines. First in a series of 4 monthly lectures on the role corporations play in Anglo-American governance. 3–4:30 p.m., 411 West Hall, 1085 South University. Free. (734) 764–7274.

AADL staffers lead 2 rounds of trivia aimed at adults. Prizes. 5:30–7:30 p.m., AADL Westgate. Free. (734) 327–4200.

Presentation by city staff on the history of forests in southeast Michigan, followed by a (weather permitting) guided walk to look at evidence of previous forests. 6–7:30 p.m., 1831 Traver. Free.

Adults and teens invited to drop in and decorate an air-dry clay fish figurine, then set it inside a provided picture frame. Led by local artist Lyla Wang. 6–7:30 p.m., AADL Downtown. Free. (734) 327–4200.  

Skaters who have qualified for the Boston Open National qualifying series show off their routines. 6:15–7:05 p.m., Ann Arbor Ice Cube, 2121 Oak Valley Dr. at Scio Church Rd. Free. (734) 213–6768, [email protected], annarborfsc.org.

Australian writer and wilderness guide Anna McCracken discusses her new book about what happens when we start to notice birdsong, moon cycles, seasons, and other natural rhythms that modern life so often causes us to overlook. 6:30 p.m., 124 E. Washington. Free. (734) 585–5567.

Local Americana duo performs originals, Celtic standards, and covers by artists such as Tom Petty, Merle Haggard, and Paul Simon. 6:30–8:30 p.m., 1200 Packard. Free; food & drink for sale. Tips welcome. (734) 997–5448, argusfarmstop.com/events-1.

All invited to sit around a campfire, roast marshmallows, and swap stories. If you like, bring outdoor games, s’mores fixings (roasting utensils provided), and camping chairs. Rain or shine, so dress for the weather. 6:30–8:30 p.m., 1831 Traver.  Free. (734) 997–1553, lesliesnc.org.  

All invited to this celebration of various East Asian mid-autumn lunar festivals featuring kids activities, musical performances, tours of the observatory, and viewing the moon through the observatory’s telescopes (weather permitting). 8–11 p.m. 1398 E. Ann at Observatory. detroitobservatory.umich.edu.

Sept. 26 & 27. Different events showcasing places and people finding ways to reverse our throwaway culture. Today: Tours of Ann Arbor’s recycling facility (tours every 30 minutes 8:30 a.m.–noon) and a thrift field trip (11:30 a.m., meet at U-M Shapiro Library, 919 South University to take provided vans), with a tour of Kiwanis Thrift. 8:30 a.m., various locations. Preregistration required for each separate event at trashtalktour.org. Free; donations appreciated.

See 3 Thurs. Today: Ann Arbor Farmers Market, Farmers Market Pavilion, Kerrytown. 10–11:30 a.m.

All 12 & older invited to this nature walk to learn about local plants and plant communities, led by ecologists Manuel Anderson and Jacqueline Courteau. Wear long pants and sturdy shoes. 10 a.m.–noon, Independence Lake County Park (Beach Center parking lot) 3200 Jennings, Whitmore Lake. Free. Space limited; preregistration requested at tinyurl.com/3b57fa3u. [email protected].