Fourth National Climate Assessment: Report-in-Brief

Impacts, Risks, and Adaptation in the United States

The Global Change Research Act of 1990 mandates that the U.S. Global Change Research Program (USGCRP) deliver a report to Congress and the President no less than every four years that “1) integrates, evaluates, and interprets the findings of the Program. .; 2) analyzes the effects of global change on the natural environment, agriculture, energy production and use, land and water resources, transportation, human health and welfare, human social systems, and biological diversity; and 3) analyzes current trends in global change, both human-induced and natural, and projects major trends for the subsequent 25 to 100 years.”

The NCA4 Volume II Report-in-Brief presents overall Summary Findings, an Overview that synthesizes material from the underlying chapters, and Executive Summaries for each chapter of this volume. This assessment was written to help inform decision-makers, utility and natural resource managers, public health officials, emergency planners, and other stakeholders by providing a thorough examination of the effects of climate change on the United States.

The 186-page Report-in-Brief is available as a downloadable PDF at Link to Original document…