The Dirt on Soil

Soil has a bad reputation as just dirt, but in actuality it is a veritable wild kingdom where you can find more life concentrated in the three inches below the surface than anywhere in the world above the soil. In week's podcast, we explore the importance of soil.

Source: The Sounds of Science from the National Academies - July 17, 2008 Category: Science Authors: The National Academies Source Type: podcasts