Invisible but deadly, mercury threatens San Francisco Bay wildlife, complicates restoration, and is the major reason that people must avoid eating Bay fish. But what to do is a conundrum. San Francisco Estuary Institute ecologist Kat Ridolfi speaks on sources of mercury, current research, and choices that can reduce contamination, 7 PM Monday, Jan. 4, at Albany Community Center, 1249 Marin (at Masonic).
Free; refreshments; all welcome! Information at f5creeks@aol.com, 510 848 9358, www.fivecreeks.org.