Human Footprints: Tracking Development From Space
The images are presented in three colors - black for urban areas; white for land surface; and grey for water.
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#1 Jul 16, 2014
Human footprints? watch out for Athlete's foot. Stinky feet area dead giveaway.
#2 Jul 16, 2014
And why are the Urban areas black?
"The images are presented in three colors - black for urban areas; white for land surface; and grey for water."
As someone filling in for a future Dr. I'm offended. The IRS should investigate.
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