SCIENCE: March was globe's fourth-hottest, but cooler than normal for U.S. Published: Friday, April 25, 2014 Last month was one of the world's hottest Marches on record, except in the United States, federal forecasters reported. Please subscribe to ClimateWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.