Cooler; brief morning showers, becoming breezy this afternoon with showers and thunderstorms
Breezy and much colder; cloudy this evening with a couple of showers, then turning out clear late
Rises at 6:05 AM with 14:50 of sunlight, then sets at 8:55 PM
Rises at 7:25 PM with 10:12 of moolight, then sets at 5:37 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.