Summary: <p>[2014-03-24 13:00:00] The answer to many environmental problems – including drought, erosion, air pollution and climate change – might be right under our feet. We’ll learn about the importance of healthy soil this hour with Kristin Ohlson, author of The Soil Will Save Us: How Scientists, Farmers, and Foodies are Healing the Soil to Save the Planet (Rodale Books).</p>
