Abundant erosion can be seen along the banks of the Blue Earth River in Vernon Center. Lake Pepin is seeing an increase in the amount of sediment present due to runoff from rivers in Minnesota. It's thought that about 75 percent of the sediment reaching the lake comes from the Minnesota River, and a large amount of that comes from the Blue Earth and LeSueur Rivers near Mankato. (MPR Photo/Alex Kolyer)
How can we feed the world AND sustain the planet?
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A University of Minnesota scientist landed in "Nature" and "Scientific American" with his major analysis of the impact of agriculture on the global environment. Which practices need to change, in order to reduce the environmental impact of feeding nine billion people in 2050? The results of his study may surprise you.
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Jonathan Foley: Director of the Institute on the Environment, University of Minnesota. McKnight Presidential Chair in the Department of Ecology, Evolution and Behavior. He leads the Global Landscapes Initiative. Climatologist and ecologist.
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