This report examines (1) what is known about potential impacts of climate change on U.S. energy infrastructure, (2) measures that can reduce climate-related risks and adapt energy infrastructure to climate change and (3) the role of the federal government in adapting energy infrastructure and adaptation steps selected federal entities have taken. The authors of the report reviewed climate change assessments; analyzed relevant studies and agency documents; and interviewed federal agency officials and industry stakeholders, including energy companies at four sites that have implemented adaptive measures.