"Since the start of the 20th century, average annual temperatures across the contiguous United States have increased approximately 1.5°F (0.8°C) [...]. Recent weather conditions are no exception to this trend. July 2012 was the hottest month in the United States since record keeping began in 1895, and 2012 was the warmest year overall, marked by historic high temperatures and droughts, above average wildfires, multiple intense storms that disrupted power to millions, and multiple extreme heat waves [...]. More than 60% of the country experienced drought during the summer of 2012, including some areas of exceptional drought [...]. These trends, which are expected to continue [...], could restrict the supply of secure, sustainable, and affordable energy critical to the nation's economic growth. At least three major climate trends are relevant to the energy sector:  Increasing air and water temperatures  Decreasing water availability in some regions and seasons  Increasing intensity and frequency of storm events, flooding, and sea level rise[.] This report--part of the Administration's efforts to support national climate change adaptation planning through the Interagency Climate Change Adaptation Task Force and Strategic Sustainability Planning process established under Executive Order 13514 and to advance the U.S. Department of Energy's goal of promoting energy security--examines current and potential future impacts of these climate trends on the U.S. energy sector. It identifies activities underway to address these challenges and discusses potential opportunities to enhance energy technologies that are more climate-resilient, as well as information, stakeholder engagement, and policies and strategies to further enable their deployment."
U.S. Dept. of Energy: http://www.energy.gov/