摘要：On October 2nd, 2001 the federal environment commissioner released her annual report. In it, she offered an assessment of the environmental impact of agriculture in the Great Lakes basin and the federal government's role. Specifically, the environment commissioner addressed: * Manure and fertilizer management * Soil erosion * Environmental impact of farm programs * Federal role in sustainable agriculture. Based on environmental audits and other analyses, the commissioner presented the following conclusions: * There is a problem with the accumulation of soil nutrients as a result of manure and chemical fertilizer applications in the Great Lakes basin * Soil erosion is a continuing problem that is not receiving adequate attention or data collection * Agriculture and Agri-food Canada (AAFC) has not adequately taken account of the environmental impact of farm programs, and farm programs can have impacts that conflict with AAFC's stated environmental goals * AAFC has not appropriately targeted funding for the environment by region, and there is a greater need for cross-compliance in farm programs * Certain agricultural practices are unsustainable, and the framework to alter unsustainable farming practices is lacking. But are these conclusions warranted, given the mix of belief and credible evidence that typically permeates discussions of agriculture and the environment? In this special report, we provide a brief analysis of the Environment Commissioner's report as it relates to livestock and sustainability. Specifically, we clarify a misconception in the Commissioner's comparison between livestock waste and human waste, and discuss the sustainability of crop nutrients (loadings and uptake) in Ontario and Quebec as they relate to manure loadings and fertilizer use.
