Rises at 5:49 AM with 14:00 of sunlight, then sets at 7:49 PM
Rises at 3:48 AM with 12:13 of moolight, then sets at 4:01 PM
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.