Rises at 6:20 AM with 13:40 of sunlight, then sets at 8:00 PM
Rises at --:-- with of moolight, then sets at 9:39 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.