Rises at 6:00 AM with 13:45 of sunlight, then sets at 7:45 PM
Rises at 4:57 AM with 13:48 of moolight, then sets at 6:45 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.