The still image is a snapshot of the Earth created from a year’s worth of data from April 2012 to April 2013. Subtle differences in shades of green in this animation reflect vegetation conditions ... more 
The still image is a snapshot of the Earth created from a year’s worth of data from April 2012 to April 2013. Subtle differences in shades of green in this animation reflect vegetation conditions worldwide. High values of Normalized Difference less 
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SPACE.com | Photo By NASA/NOAA
Sat, Jun 22, 2013 7:35 AM EDT