Human Footprints: Tracking Development From Space

There are 2 comments on the Live Science story from Jul 16, 2014, titled Human Footprints: Tracking Development From Space. In it, Live Science reports that:

The images are presented in three colors - black for urban areas; white for land surface; and grey for water.

Join the discussion below, or Read more at Live Science.

Dr Bayrock Oquackabama

Green Bay, WI

#1 Jul 16, 2014
Human footprints? watch out for Athlete's foot. Stinky feet area dead giveaway.
http://www.mayoclinic.org/diseases-conditions...
Dr Bayrock Oquackabama

Green Bay, WI

#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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