National Geographic fellow and Pew Conservation Scholar Sandra Postel is a world-renowned authority on issues regarding fresh water — that thing essential to all human life and society. She'll talk about the effects of climate change on water supply, groundwater depletion, water wars and conservation, followed by a Q&A. Registration required.
Where: Academy of Natural Sciences at 1900 Ben Franklin Pkwy. 19103
When: March 15, 2017 from 6:30 p.m. to 8:00 p.m.
How much: Free with registration