Rises at 5:50 AM with 15:45 of sunlight, then sets at 9:35 PM
Rises at 4:02 AM with 15:25 of moolight, then sets at 7:27 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.