I found this awesome page of images taken from space. Here is a description of that page.
"The images you see below were taken at the turn of the Millennium, when NASA’s scientists had a brilliant idea: to scan through 400,000 images taken by the Landsat 7 satellite and display only the most the most beautiful. A handful of the best were painstakingly chosen and then displayed at the Library of Congress in 2000."
What I didn't expect to see is the brutal deforestation in South America. We all know that it is happening, but I don't think we know the extent of it. Bolivia, Brazil and Paraguay seem to be the worst offenders.
Download Google Earth if you haven't already (if you haven't already, you're a loser) then check out this link to the deforestation.
Also look around Paraguay and Brazil while you are there. I'll bet at least half of the forest is gone.