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| Today | Normal | Record | 5/30/2012 | |
|---|---|---|---|---|
| High | 82° | 73° | N/A | 69° |
| Low | 61° | 52° | N/A | 53° |
Rises at 6:09 AM with 14:57 of sunlight, then sets at 9:06 PM
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.