Cooler with clouds giving way to a brightening sky
Rises at 5:42 AM with 15:19 of sunlight, then sets at 9:01 PM
Rises at 1:42 AM with 15:03 of moolight, then sets at 4:45 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.