Intervals of clouds and sunshine
Rises at 6:00 AM with 15:18 of sunlight, then sets at 9:18 PM
Rises at 7:17 PM with 10:17 of moolight, then sets at 5:34 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.