Wednesday, December 29, 2010
Water really is a scarce resource . . .
The US Geological Survey has published an astonishing image, showing all the water on the Earth - including fresh and salt water, glaciers, even the liquid in our own bodies - gathered into a sphere, and shown relative to the size of our planet.
Click here to see the original (much larger) version, plus more information about the quantity of water involved.
It certainly makes it clear how little water we have to play with on this otherwise barren planet, doesn't it?