A more substantive precautionary principle of international law is evolving as new treaties articulate new measures of precaution in different contexts. Although there is considerable controversy over how to articulate or define a precautionary "principle" of law, the goal is to ensure that the mere lack of scientific knowledge about risks cannot justify a failure to take appropriate precautions. Where we have sufficient evidence of risk, we often take precautions, despite a lack of certainty about those risks.

In a recent article reviewing the U.S. Supreme Court's environmental decisions over the last 30 years (1969-1999), Professor Richard Lazarus argues that "the Justices have never fully appreciated environmental law as a distinct area of law."¹

A recent headline on the front page of the Wall Street Journal hailed the opening of the nation's first "butterfly bank." The "deposits" in this unusual bank are conservation credits earned by preserving an important area of habitat for the Quino checkerspot butterfly, an endangered species restricted to California. The bank's intended customers are other landowners who hope to develop other sites where the butterfly occurs. In order to do so, they can buy credits from the private entrepreneur who established the butterfly bank.

Keynote Presentation: Making the Partnership Work

Panel Discussion: Regulation of Nuclear Materials

Regulation of Air Quality

Regulation of Water Quality: Is EPA Meeting Its Oblilgations or Can the States Better Meet Water Quality Challenges?

Regulating Solid and Hazardous Wastes

Editors' Summary: The U.S. Supreme Court ruled on three takings cases in its 2004 term: Lingle v. Chevron U.S.A., Inc.; Kelo v. City of New London; and San Remo Hotel, Ltd. Partnership v. City & County of San Francisco. In Lingle, the Court struck down the "substantially advance" test set forth in Agins v. City of Tiburon. Kelo, which gained attention from the media and public, upheld the use of eminent domain for economic development purposes. And San Remo involved a relatively straightforward procedural issue.

In September 1991, 25 people died at the Imperial Food Products plant in Hamlet, North Carolina, when they were trapped in a factory fire. Witnesses to the fire said the employees could not escape because the building doors were locked, apparently to prevent pilferage. The North Carolina assistant labor commissioner subsequently stated that the locked doors constituted "serious violations" of the Occupational Safety and Health Act (OSH Act). The plant, however, had never been inspected for health or safety violations in its 11 years of operation.

New rules are emerging to change the way the government makes decisions about cleanup of hazardous waste sites under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund). These changes have altered Superfund decisionmaking fundamentally and irrevocably, requiring the government to reach for new levels of accountability, rationality, and consistency. Central to the government's ability to meet this challenge is the way in which it makes and explains decisions about acceptable risks and required levels of cleanup.

Editors' Summary: Redeveloping abandoned urban hazardous waste sites, or brownfields, can significantly benefit developers, local communities, and the environment. Developers can purchase brownfields inexpensively, and subsequent redevelopment brings jobs to local communities and economic growth to inner cities, while allowing virgin land to remain pristine. Yet, barriers to redevelopment, such as the probability of legal liability, uncertainty regarding cleanup standards, and lenders' unwillingness to finance contaminated property, can make redevelopment extremely risky and difficult.

When the 103d Congress convened on January 5, 1993, many observers believed that it would make up for the dismal environmental record of its predecessor. The 102d Congress had tried and failed to reauthorize the Federal Water Pollution Control Act (FWPCA), the Endangered Species Act (ESA), and the Resource Conservation and Recovery Act (RCRA). Its attempt to elevate the U.S. Environmental Protection Agency (EPA) to a cabinet-level department had been blocked in the House of Representatives, and its attempt to reform the General Mining Law of 1872 had been blocked in both houses.

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.