There is increasing evidence that the global climate is changing: global temperatures have risen about 1 F over the past century, mountain glaciers are melting back, sea level is rising. But how is the climate of the United States changing? Are these changes like others being experienced around the world? Is the US climate becoming more or less variable? Are we having more or fewer climatic extremes? This USGCRP seminar addresses these questions in the context of the anthropogenic influences on atmospheric composition and climate

This report discusses the direction of a national policy to protect oceans, coasts, and the Great Lakes while coordinating with national security and foreign policy interests. The priorities include ecosystem restoration, water quality, resiliency to climate change and acidification, and improved environmental observation systems.