Rises at 6:15 AM with 12:45 of sunlight, then sets at 7:00 PM
Rises at 5:16 PM with 11:20 of moolight, then sets at 4:36 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.