Random acts of conservation: Water quality depends on farmers' willingness, not regulation

The Nordick farm, near Rothsay, Minn.
A culvert provides a frame for farmer Jared Nordick's land near Rothsay, Minn. Agriculture is a big source of pollution, but some Minnesota farmers are working to clean up dirty water and reduce the amount of nitrate reaching state waterways.
Ann Arbor Miller | MPR News