USA Today: “As fearsome as Category 5 hurricanes can be for people living in harm’s way, a new study reports global warming is supercharging some of the most intense cyclones with winds high enough to merit a hypothetical Category 6.  The world’s most intense hurricanes are growing even more intense, fueled by rising temperatures in the ocean and atmosphere, according to the study published Monday in the Proceedings of the National Academy of Sciences. And, the authors say, a Category 5 on the traditional wind scale underestimates their dangers. “As a cautious scientist, you never want to cry wolf,” said Michael Wehner, co-author and climate scientist at the Lawrence Berkeley National Laboratory. But after searching for the signature of climate change in the world’s most intense cyclones, Wehner said he and co-author Jim Kossin found “the wolf is here.”