Pittsburgh Post-Gazette: Mother Nature is trying to tell us something and every passing year her message becomes more urgent. That is the takeaway from the news that 2012 was the hottest year in the history of the contiguous United States.
The politicized community of climate change deniers will always find a way to deny the obvious, but more and more the obvious just won't be pushed out of sight. The situation has become a grim variation of the punch line to the old joke: Who are you going to believe, the climate change...