The several hundred animals housed in each medium-sized CAFO produce as much waste as a small city of tens of thousands of people.

VOA: standard.2010.05.06

He is the director of applied research for the Solid Waste Association of North America, a professional organization that promotes the efficient and environmentally-sound management of municipal solid waste.

VOA: standard.2010.08.05

Allen Hershkowitz with the Natural Resources Defense Council, a private environmental group, says air quality around landfill sites must be carefully checked when oil-contaminated waste is added to normal household trash.

VOA: standard.2010.08.05