Intervals of clouds and sun
Rises at 7:49 AM with 9:00 of sunlight, then sets at 4:49 PM
Rises at 12:36 PM with 13:36 of moolight, then sets at 2:12 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.