Intervals of clouds and sun
Rises at 6:40 AM with 13:08 of sunlight, then sets at 7:48 PM
Rises at 12:22 AM with 10:45 of moolight, then sets at 11:07 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.