According to the NRC and the USGCRP, changes in the earth's climate -- including higher temperatures, changes in precipitation, rising sea levels, and increases in the severity and frequency of severe weather events -- are under way and expected to grow more severe over time. These impacts present significant risks to the nation's energy infrastructure. This book examines what is known about potential impacts of climate change on U.S. energy infrastructure; measures that can reduce climate-related risks and adapt energy infrastructure to climate change; and the role of the federal government in adapting energy infrastructure and adaptation steps selected federal entities have taken.