A new study by NASA's James Hansen finds that extreme weather events, such as recent heat waves, are a direct consequence of global warming.
Extreme weather events, such as the heat waves that have broiled the High Plains and Midwest this summer, smashing thousands of temperature records, are a direct consequence of global warming, according to a new study led by prominent climate scientist, James Hansen of NASA. The study seeks to reframe how people view the links between manmade global warming and extreme weather events, going farther than ever before in making direct ties between the two.
The study by Hansen, who first warned of the consequences of manmade global warming in landmark Senate testimony in 1988, shows that a new category of extremely hot summers has become far more common than would ever have happened without the buildup in heat-trapping greenhouse gases from human activities.
“I don’t want people to be confused by natural variability — the natural changes in weather from day to day and year to year,” Hansen said in a press release. “We now know that the chances these extreme weather events would have happened naturally — without climate change — is negligible.”