Add Yahoo as a preferred source to see more of our stories on Google. The only thing better than bison manure is free bison manure. Colorado State University's Laramie Foothills Bison Conservation ...

Manure is often used as fertilizer, but what if it could pick up a second application before heading to the fields? A dairy farm in New England is experimenting with turning tons of cow manure into ...

Government subsidies helped dairy farmers generate electricity from cow manure, but the novelty is wearing off as utilities pay next to nothing to put it on the grid. This story is the first of three ...