Link: http://www.marketplace.org/2016/03/28/world/our-future-someone-has-think-about-dirt
Summary: Nitrate pollution and soil erosion are common concerns when it comes to growing soy and corn. These crops are generally grown in the U.S. because farmers usually have an abundance of economic incentives such as crop insurance and the ethanol mandate, encouraging them to do so.
Original Air Date: March 29, 2016
Length: 3 minutes 44 seconds
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