A fascinating and sometimes disturbing look at the impacts humans have on their environment as we develop, grow, and inhabit our world. You can explore the pre-selected regions/topics (oil sands) or use the "Explore the World" link at the bottom right of the page to type in your own location and look at how your region has changed over the past 30 years.
http://world.time.com/timelapse/?hpt=hp_t3
Note: Grab the slider and move it back in time to see how things might look in reverse. How long would it take for Nature to reclaim the land and reverse the impacts of our development and growth?