Only 60 Years of Farming Left If Soil Degradation Continues

Generating three centimeters of top soil takes 1,000 years, and if current rates of degradation continue all of the world's top soil could be gone within 60 years, a senior UN official said. By Chris Arsenault.
Read more: https://www.scientificamerican.com/article/only-60-years-of-farming-left-if-soil-degradation-continues/?source=Snapzu