With global warming already suffering from serious public mistrust, a new report from the Science and Public Policy Institute is now casting doubt on temperature records from two major US agencies. According to the report, temperature data from NASA and the National Oceanic and Atmospheric Administration have been significantly tampered with to show greater warming in recent years. Data from the 1930s-1950s were readjusted downward; temps in the last decade were artificially increased three tenths of a degree Fahrenheit, and readings for Arctic areas were simply invented where no stations exist. Following on the heels of the Climategate scandal, this overheated science on global warming is hardly a confidence builder.