Intervals of clouds and sunshine with a passing shower
Rises at 4:57 AM with 0:00 of sunlight, then sets at 4:57 AM
Rises at 4:57 AM with 0:00 of moolight, then sets at 4:57 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.