Sun giving way to increasing clouds
Rises at 6:25 AM with 12:49 of sunlight, then sets at 7:14 PM
Rises at 8:47 AM with 14:49 of moolight, then sets at 11:36 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.