NASA's Earth Observatory is a "freely-accessible publication on the Internet where the public can obtain new satellite imagery and scientific information about our home planet." The Earth Observatory feature presented in this Web site introduces documented changes in plant productivity over the last two decades -- the warmest decades on record. The study, based on satellite imagery and ground observations, also demonstrates the most important of those factors influencing changes in plant productivity. Readers will find an informative overview of the study and terrific high-resolution images.
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