"Extreme rainstorms and snowfalls have grown substantially stronger, two studies suggest, with scientists for the first time finding the telltale fingerprints of man-made global warming on downpours that often cause deadly flooding.
Two studies in Wednesday's issue of the journal Nature link heavy rains to increases in greenhouse gases more than ever before.
One group of researchers looked at the strongest rain and snow events of each year from 1951 to 1999 in the Northern Hemisphere and found that the more recent storms were 7 percent wetter. That may not sound like much, but it adds up to be a substantial increase, said the report from a team of researchers from Canada and Scotland."
"Extreme Storms and Floods Concretely Linked to Climate Change?" (National Geographic News)
"Greenhouse Gases Led To Increase in Deluges, Researchers Say" (Post Carbon)
"Researchers Link Extreme Rains To Global Warming" (NPR)