Rises at 4:30 AM with 17:14 of sunlight, then sets at 9:44 PM
Rises at 3:50 AM with 16:36 of moolight, then sets at 8:26 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.