Mostly cloudy and cooler with a shower or thunderstorm in spots
Mostly cloudy and breezy with a couple of showers
Rises at 6:01 AM with 14:46 of sunlight, then sets at 8:47 PM
Rises at 7:17 PM with 10:15 of moolight, then sets at 5:32 AM
May 23, 2013; 5:00 AM ET A team has developed a model to determine the influences of humans and climate on vegetation changes. Valerie Smock explains what has the greatest effect.