Nancy Kelley

Too many people with septic tanks on an aquifer made of sand spells trouble. 

Nitrogen pollution is threatening shellfish populations and the ecosystem of the Great South Bay. The Nature Conservancy's Nancy Kelley explains.

Nancy Kelley, founding executive director of New York Genome Center and Thomas Maniatis, chair of biochemistry and molecular biophysics at Columbia University, one of the NYGC founding institutions, talk about the launch of the New York Genome Center, a public-private coalition of universities, medical centers, technology partners and philanthropists.