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| High | 81° | 79° | N/A | 99° |
| Low | 66° | 55° | N/A | 76° |
Rises at 6:05 AM with 14:35 of sunlight, then sets at 8:40 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.