Google Earth has a feature called Timelapse that combines millions of different satellite images to show you how the world has changed over the last 37 years -- sometimes for the better and sometimes for the worse. It's a feature that's been out for a few years, but they just made it available in 3D. Some of you may have also missed the feature if you don't normally use Google Earth. So here's an overly wondrous video (also embedded above) showing off the new feature, and here is a dedicated site that allows you to quickly try out Timelapse in 2D. Dubai's "coastal expansion" is one of the places you can quickly land on and its growth over the last few decades is always mind boggling to see. But of course, there are also many other important Timelapses that should be viewed. A number of them speak to our environmental impacts on the world.