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| High | 91° | 88° | N/A | 91° |
| Low | 69° | 67° | N/A | 72° |
Rises at 6:29 AM with 14:01 of sunlight, then sets at 8:30 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.