Rises at 5:01 AM with 15:20 of sunlight, then sets at 8:21 PM
Rises at 8:14 PM with 10:20 of moolight, then sets at 6:34 AM
Aug 30, 2012; 5:00 AM ET If you're longing to ski the Alps or swim in the Great Barrier Reef, you may be running out of time. A changing climate may beat you to the punch line. Valerie Smock has more.