Rainwater Harvesting Workshop

According to the organizers:

Learn about what you can do to help prevent Combined Sewer Overflows in New York City. Whenever it rains, raw sewage is dumped untreated into New York City water-bodies like the Gowanus Canal. In this hands on workshop, learn about this problem and come away with ideas about what you can do from adopting a bioswale, to building your own rainwater harvesting system.