Livestock farming has been transformed in the past twenty years from a business dominated by relatively small producers to one characterized by large, often indoor, facilities raising thousands of animals. This concentration has already occurred in the United States and Canada and has begun to occur in Mexico. This report surveys the current environmental requirements for “intensive livestock operations” (ILOs) in Canada, Mexico and the United States. The report draws conclusions about current regulatory regimes and makes recommendations for the management of environmental issues associated with ILOs.
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