Last Tuesday (6/16), White House issued a report about how climate change will affect the United States in the next century. The 13 U.S. agencies–including NASA, the Department of State and the Department of Energy–collaborated for this report. Using the most up-to-date scientific data, The Global Climate Change Impacts in The United States report says that unprecedented changes will in the water cycle and distribution will lead to increased competition for water supplies in the country. The report also predicts that more common and intense floods, droughts and rainfall, as well as less snow and snow pack will make wet areas wetter and dry areas drier in nine U.S. geographical zones.
Here on the website of US Global Change Research Program, you can also find a video clip of the presentation at the White House.