Agricultural biotechnology has generated much debate about the environmental consequences of field trials and commercialization of transgenic crops. Thus far, the debate has focused on opponents' claims of alleged risks presented by transgenic crops and the proponents' responses to those asserted risks. To date, three issues have dominated the debate:

. the risk of gene flow;

. the risk of weediness; and

. the risk of insect-resistance.

In recent years, the western states have often struggled with the federal government over control and management of natural resources, particularly water. For its part, federal law defers to states in many matters of water resource allocation.

Under the Wetland Conservation subtitle of the Food Security Act of 1985, as amended, commonly known as "Swampbuster," wetlands may be used to grow crops provided they are not degraded by this practice. In the legislation, Congress has made an effort, by use of the "minimal effects" concept, to make precise just what farming practices are acceptable. If a farming practice has only a minimal effect on the wetland's function, then the farmer is not ineligible for participation in federal loan, commodity price and income support, and conservation programs.

The U.S. Supreme Court decision last term in Solid Waste Agency of Northern Cook County v. U.S. Army Corps of Engineers (SWANCC), striking down the migratory bird rule for wetlands regulation, warrants some reading of the Court's environmental tea leaves. Some fine commentary in these pages still leaves murky whether the opinion seriously imperils other environmental laws and regulations. Chief Justice William H. Rehnquist's SWANCC opinion for a five-Justice majority had worrisome implications that the new restrictive view of the U.S.

Environmental regulation of pollution in the United States is often maligned as costly and ineffective. Pollution continues to plague and degrade the natural resources in the United States, and U.S. waters in particular. Nonpoint source pollution is currently the most significant source of water pollution, but it is also the most unregulated. While other discharges into U.S. waters have been dramatically reduced since the Federal Water Pollution Control Act (FWPCA) was enacted, nonpoint source pollution—caused most by runoff from agricultural operations—has increased.