Climate Central: Global warming has already doubled the risk of Hurricane Katrina-magnitude storm surges in the U.S., according to a new study published Monday.
The study, which was published in the journal Proceedings of the National Academy of Sciences, estimates that for every 1.8°F increase in global average surface temperatures, there could be a two-fold to seven-fold increase in the risk of Katrina-magnitude surge events.
The latest climate projections call for the globe to warm by between 3.2°F and 7.2°F...