What 40 Years Have Wrought: The Earth Since 1972

What 40 Years Have Wrought: The Earth Since 1972

by Rebecca J. Rosen

During its 40 years in space, the Landsat program has provided scientists with a clear and sometimes terrifying picture of our changing planet.

http://www.theatlantic.com/technology/archive/2012/07/what-40-years-have-wrought-the-earth-since-1972/260192/