See Lasley, P. 1997. Social Consequences of Environmental Concerns (1) as the author discussed the same elements in both presentations. The summary of the other presentation is copied here.
The changes in the pork industry with the decline of the number of small producers and the increase number of large scale production units bring concerns about family farming and life quality in rural communities and neighborhoods. Opposition to the expansion of large intensive production units comes mainly from concerns about the environment and the impact on neighborhoods. Controversy comes from the values and belief that have either pork production advocates or critics. Often what is considered by one group as a fact may be judged by the other as a myth. Facts and data, when they exist are often not acceptable to all parties. One factor that can be pointed to explain environmental problems seems to be poor management practices and poor managers. And this is not related to the size of the swine farm or production unit. Large production units well manage may have much less environmental impacts than smaller units where balance between livestock numbers and available land is inappropriate, or if manure is considered as a waste. As changes in the society occur and pork producers become a more of minority even in areas where the number had been once important, it is unreasonable to expect that farming could benefit from exceptions or privileges when environment is considered. Environment has to become an important concern of the pork industry as environmental record is often seen as a good indicator of community commitment. Industry with bad environmental record are often viewed as unwelcome development and become the target of more public scrutiny and regulation.

The elements brought in this article are very interesting in the way they present the situation and the fact that the swine industry advocates and the critics don’t have the same view of the production and don’t see things from the same grounds. However no path of solutions are given. The management seem to be the key toward better respect of the environmenta