lightning might strike twice!

To the ever-growing list of projected effects from global warming, add a curious entry: a potentially huge jump in lightning strikes in the United States.

David M. Romps, an atmospheric physicist at the University of California, Berkeley, who led the work, said the change would come about from a global temperature increase of roughly 7 degrees fahrenheit. “This increase in lightning is an example of a fairly large change you can get from what sounds like a relatively small global temperature increase,” Romps said.
Sydney Morning Herald, 14 Nov 2014