How will the world feed itself in the face of climate change and a growing population? Timed to Earth Day, the Nature Conservancy and WBUR kick off a series of lectures on the Future of Nature with a panel discussion about food. Tickets to the event, 5:30 to 9:30 p.m. at the Artists for Humanity EpiCenter in South Boston, cost $25 at nature.org/future or at the door.
Documentaries about killer whales, a Beatles superfan, and Gore Vidal; features directed by Joss Whedon, Lynn Shelton, and Nat Faxon and Jim Rash; shorts of every stripe; and more will screen at theaters in Cambridge, Somerville, Boston, and Brookline as part of the Independent Film Festival Boston. See the full schedule of 105 films and buy tickets (starting at $10) atiffboston.org.
INTERVIEWING THE INTERVIEWER
Christiane Amanpour, CNN’s chief international correspondent, appears at ASEAN Auditorium in the Cabot Intercultural Center on Tufts University’s Medford/Somerville campus Friday at noon to discuss current world issues and the public’s changing consumption of news. Admission is free. 617-627-4703; tufts.edu
Nature lovers can get outdoors for a good reason Saturday, for Mass Audubon’s Statewide Volunteer Day, 9 a.m. to noon. Sign up at massaudubon.org/workforwildlife to help with such tasks as pruning, planting, spreading compost and mulch, and spiffing up trails at 15 sanctuaries throughout the state.
GO WITH THE FLOW
Head to Boston Common near the corner of Beacon and Charles streets Saturday from 10 a.m. to 3 p.m. for the free World Tai Chi Day Health Festival. Activities include free tai chi and qigong workshops and demos, and performances by local martial arts groups. dbahealth.org
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Note, due to a large response from interested attendees, Tufts University changed the location of Christiane Amanpour’s appearance from Barnum Hall to ASEAN Auditorium in the Cabot Intercultural Center on the Medford/Somerville campus, allowing for more seats.