The U.S. Climate Change Science Program released a 162-page report overwhelmingly confirming that manmade pollution is causing "changes in weather and climate change." The report concludes that an increase in the frequency and severity of extreme weather events "could seriously affect" human health, agricultural production, and the availability and quality of water in North America.
http://www.noaanews.noaa.gov/stories2008/20080619_climatereport.html
Led by the National Oceanic and Atmospheric Administration, the...