Posted inEnvironment

Manure digesters seen as best hope for curbing lake pollution, but drawbacks remain

It is no secret that cows produce two things in abundance in the Dairy State: milk and manure. Wisconsin’s 1.27 million dairy cows produce 3.2 billion gallons of milk and enough manure to fill almost 3,000 Olympic-size swimming pools a year, according to Steve Carpenter, director of UW-Madison’s Center for Limnology, who has studied the water quality of Madison’s lakes for 40 years.

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