Now, though, the accelerating and intensifying impact of human activities is visibly altering the planet, requiring ever more frequent redrawing not only of political boundaries, but of the shape of Earth’s features themselves.
The images are before and after pictures of the Aral sea. The scale on the ground is hundreds of miles. You may be able to make out a white rectangle at lower left that represents 20 km or about 13 mi.
Images are from the UNEP Atlas of the Changing Earth which is very spiffy in a sobering sort of a way.