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.

Few commentators doubt the value of clean, unadulterated waters teeming with varied and colorful aquatic life. The debate centers instead on more pragmatic concerns, that is, how to best accomplish the accepted imperative. Some maintain that the primary responsibility should fall on the federal government because of its insularity from regional economic and political pressures. Others suggest that states should take the lead because of their familiarity with and ability to respond to local environmental concerns. Both sides have valid points.

There seems to be agreement across a wide spectrum of those involved in Superfund cleanups that such cleanups should take into consideration the kinds of activities that are expected to take place at the site after the remedial work is completed. While cleaning every site to levels suitable for all conceivable uses may be a laudable goal, doing so can impose costs that are out of proportion to the added amount of protection obtained.

Editors' Summary: On February 28, 2005, the U.S. Court of Appeals for the Second Circuit vacated and remanded portions of EPA's concentrated animal feeding operations (CAFO) rule. The ruling was not a win for either side of the debate, as it requires permitting authorities to review and incorporate nutrient management plans into their permits, but prevents EPA from requiring CAFOs to apply for permits based solely on their potential to discharge pollutants to U.S. waters.