Noah Greenwald is the Endangered Species Director for the Center for Biological Diversity. He directs the Center's efforts to protect new species under the Endangered Species Act, to ensure that imperiled species receive effective protections and that we have the strongest Endangered Species Act possible. He also works to educate the public about the importance of protecting biodiversity and about the multitude of threats to the survival of North American wildlife. He holds a bachelor of science in ecology from the Evergreen State College and a master's in forest ecology and conservation from the University of Washington. Before he joined the Center in 1997, Noah worked as a field biologist, surveying northern spotted owls and marbled murrelets and banding Hawaiian songbirds. Today we talk about grizzly bears.