The nature and properties of soils

Dirt, soil, call it what you want--it's everywhere we go. It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil that sweeps from ancient civilizations to modern environmental calamities, Dirt: The Erosion of Civilizations explores the compelling idea that we are--and have long been--using up Earth's soil.
Films included in this compilation are "Mekong: Watch That River!" (2009); "Small Islands, Big Impact" (2009); "South Asia: Crowded Land, Drying Rivers" (2009); and "Yellow River Blues" (2009). Additional information and synopses of the individual films is available from the TVEAP website (www.tveap.org).