Animated world map of remaining natural vegetation shows how land-use has changed over the past 8500 years

Of note is change in South America up to the first contact with settlers from the old world leading to a dramatic reversal and revival of the natural environment, coinciding with the death of the indiginous population.  The extent of global change over the past 100 years is remarkable.

http://www.good.is/post/video-8-050-years-of-human-impact-on-the-land/