Deep Down and Dirty. The Science of Soil

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Description

It takes a thousand years to form a single inch of soil. It is a fragile layer on the surface of the land - yet essential to all life on Earth. But where did soil come from and how was it made? Gardening expert Chris Beardshaw reveals the secrets locked within soil. Traveling around in his specially-equipped mobile soil lab, he delves down into dirt to uncover its deepest secrets. He looks into the distant past to reveal the almost miraculous way soil first formed, and takes a tantalizing glimpse into the future, to reveal soil as a commodity more precious than oil or gold.