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| Today | Normal | Record | 5/23/2012 | |
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| High | 68° | 74° | N/A | 82° |
| Low | 50° | 51° | N/A | 54° |
Rises at 6:15 AM with 14:39 of sunlight, then sets at 8:54 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.