Intervals of clouds and sunshine
Rises at 6:36 AM with 13:00 of sunlight, then sets at 7:36 PM
Rises at 1:26 PM with 13:59 of moolight, then sets at 3:25 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.