The valley and the lake. Fourth movement, Water beneath our feet / presented by Christopher Beaver ; produced and directed by Christopher Beaver.
Part Four: There are only two kinds of water in the world, surface water that comes from the sky and the water beneath our feet, often called "groundwater." With drought spreading across the Earth, one might well ask, is there enough groundwater to balance the needs of our cities and our f...
Full description
Saved in: