Join faculty, students, and staff at the Yale Peabody Museum of Natural History for the inaugural Yale Climate Day, a campus-wide summit to forge a spirit of collaboration concerning global climate change. Events will include talks, poster sessions, and a cocktail reception. Free. 170 Whitney Ave. 9 a.m.-5 p.m.
Stop by the third annual festival that will feature the work of playwright Everett George (Fallon Paiute Shoshone Tribe), musician Vonica LaPlante (MHA Nation), and dancer Charlize Arcoren (Sicangu Lakota), as well as spoken word artists Teanna Hart (Sicangu Lakota) and Zoey White (Oglala Lakota). Festival continues through Saturday. Free. Off Broadway Theater, 41 Broadway.
View a screening of a 35mm print of director Kar-Wai Wong’s epic film depicting the world of “wuxia” — chivalric warriors practicing the martial arts. Free. Whitney Humanities Center, 53 Wall St. 7 p.m.
Attend a performance of Guillermo Calderón’s drama in which a standing double date in Damascus “quickly escalates into farce as four friends unburden their hearts and reveal their secret passions.” Play continues through May 19. Tickets: $12-$90. Yale Repertory Theatre, 1120 Chapel St. 2 p.m.
Experience Yale Opera’s fully staged production of Humperdinck’s “Hansel and Gretel,” in which the witch personifies the internet’s harmfulness and the two protagonists have to “free themselves from the clutches of technology and return to reality.” Tickets: $5-$20. Morse Recital Hall, 470 College St. 7:30 p.m.
Listen to three scholars speaking about their work with the Fortunoff Video Archive for Holocaust Testimonies at the first Geoffrey H. Hartman Fellowship Symposium. Free. Lecture Hall, Sterling Memorial Library, 301 York St. 9-11:45 a.m.
Explore the beauty and majesty of birds — from hawks to hornbills — through the eyes of renowned artist Albert Earl Gilbert and discover the process and passion behind the painter’s vision. Tickets: $6-$13. Yale Peabody Museum of Natural History, 170 Whitney Ave. Noon-5 p.m.
Contemplate the ancient monastic office of Compline as it sung by members of the Christ Church Choir. Candles will offer the only illumination, and the choir will sing from an unseen loft at the north end of the crossing. Free. 84 Broadway. 9 p.m.