Methane digesters — biogas recovery systems that use methane from manure to generate electricity — have not been widely adopted in the United States because costs have exceeded benefits to operators. Burning methane in a digester reduces greenhouse gas emissions from manure management. A...

The Environmental Protection Agency is currently gathering data to regulate livestock facilities under the Clean Air Act, legislation that purports to protect public health. To set rational policy, estimates of health externalities associated with livestock farming are necessary. This study uses...

Nutrients from livestock and poultry manure are key sources of water pollution. Ever-growing numbers of animals per farm and per acre have increased the risk of water pollution. New Clean Water Act regulations compel the largest confined animal producers to meet nutrient application standards...