Prerequisites:POLSC 100 or SUST 101 or consent of instructor This course examines major environmental problems whose effects are significant both within the United States and across national borders: biodiversity loss; ozone depletion; climate change; air pollution; flows of toxic substances; pollution of the oceans; whaling and over-fishing. The course will examine how governments make (or fail to make) policies to address these problems and how countries cooperate (or fail to cooperate) to confront common threats to ecosystems and resources.