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Human-Induced Climate Change Causing Extreme Weather, New Study Says
|Tuesday, Aug. 7, 2012 | ProCon.org | MORE HEADLINES|
"Perception of Climate Change," published Aug. 6 online in the Proceedings of the National Academy of Sciences by James Hansen, director of NASA's Goddard Institute for Space Studies, states that "while average global temperature has been steadily rising due to a warming climate, the extremes are actually becoming much more frequent and more intense worldwide."
According to a National Academy of Sciences summary of the research, Hansen looked at summer surface temperature anomalies during a "base period" between 1951 and 1980, and compared it to more recent years.
"Their findings revealed that extremely hot summers... occurred much more frequently in the past several years than during the base period, when they were practically absent," the summary states. "These extremely hot summers have affected an estimated 10% of global land area in recent years, compared with less than 1% of the Earth's surface during the base period."
Associated Press, "Study by ‘Global Warming Godfather’: Texas Drought, Europe Heat Waves Are Climate Change," washingtonpost.com, Aug. 4, 2012