McClatchy: No longer is David Braaten constantly cocooned in his red super parka. He left the insta-freeze winds of the Antarctic interior in January. But as cold as the trip was for the University of Kansas scientist, he recognizes what one discovery after the next has demonstrated this year: It’s getting remarkably warm for down there, and it’s heating up incredibly fast. “We’re trying to find out what’s happening to the ice,” said Braaten, the deputy director of the KU-based Center for …