Comfortable with times of clouds and sun
Rises at 6:35 AM with 12:19 of sunlight, then sets at 6:54 PM
Rises at 2:18 AM with 14:06 of moolight, then sets at 4:24 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.