Intervals of clouds and sunshine
Rises at 5:19 AM with 15:19 of sunlight, then sets at 8:38 PM
Rises at 1:53 AM with 14:31 of moolight, then sets at 4:24 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.