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A World Without Soil [VIDEO]

Jo Handelsman, director of the Wisconsin Institute for Discovery, explores the importance of soil at the Crossroads of Ideas lecture series.

On February 16, WID Director Jo Handelsman kicked off the spring Crossroads of Ideas lecture series with a talk about long-term challenges to soil, a complex system upon which much of life on Earth depends. Iowa topsoil, for example – believed to be the deepest and most fertile in the world – is eroding at more than twice the rate that it is being replenished. About one third of all soils on Earth are in a degraded state, and replacing even a centimeter of soil can take up to 1,000 years.

The Crossroads of Ideas lecture series is supported by the Morgridge Institute for Research, the Wisconsin Institute for Discovery, and WARF.

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