DUNES. When you think of deserts, you think of sand dunes as far as the eye can see. Where do they come from? How do they develop? What keeps the desert from simply blowing away? Professor D’Odorico tells us how vegetation helps to stabilize dunes in the Kalahari of Botswana.
GRASS RECOVERY. Do deserts grow and shrink, like tides in the ocean? How do humans impact the size of a desert? Professor D’Odorico reports on the processes leading to soil destabilization and active dune formation.