02 Feb '15, 11am

New study looks at storms and climate change.

All of these weather events have happened as the concentration of greenhouse gases in the atmosphere has been rising higher than it has been for at least 100,000 years. Scientists are nearly certain that the buildup of carbon dioxide has already sparked changes in Earth’s atmosphere and ecosystems. The lowest layer of the atmosphere (the troposphere) has warmed markedly, especially at high latitudes. So have the world’s oceans. Heat waves and droughts have grown more likely and more extreme. Arctic ice is melting at a record pace, and the snowy landscapes of the far north have started melting earlier each year. Given all the change that has already take place, it’s reasonable to wonder if climate change has affected storms as well. “After the tornadoes in 2011, I was flooded with calls from reporters,” says Anthony Del Genio, a climatologist at NASA’s Goddard Institute for...

Full article: http://earthobservatory.nasa.gov/Features/ClimateStorms/

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