Liquified manure is sprayed on a snowy field. The snow melted soon after this photo was taken, causing the animal waste to drain into local wetlands. by John Klein

Animal waste is liquefied and held in a waste storage facility. by John Klein

Manure-storage lagoons have increased in size. by John Klein

Algae blooms--the result of a December manure "spill" from a factory farm--turned a lake green the following summer.by John Klein