Editors' Summary: The recently completed 105th Congress provided the nation with a legacy of unparalleled legislative inactivity. Few, if any, of the legislative initiatives earmarked as priorities passed as bitter partisan debate ruled on Capitol Hill. This Comment analyzes how such partisanship and subsequent congressional lethargy created the environmental successes, controversies, and failures of the 105th Congress.

Over the past several years, considerable public and private efforts in this country have been directed at reducing the risk of cancer that human exposure to high levels of radon gas poses. These efforts appear to have succeeded in raising public awareness of radon and in increasing testing for radon. For the most part, however, these efforts have been directed toward homeowners and have not addressed the problem of radon in residential rental properties. Yet, in 1989, nearly 34 million homes—over one-third of all housing units in the country—were rental units.

Although the 104th Congress did not begin officially until January 4, 1995, its significance was apparent as soon as the polls closed on November 8, 1994. When the votes were tallied, Republicans had acquired majorities in both the Senate and the House for the first time in 40 years. And they were quick to proclaim the beginning of a revolution in congressional lawmaking.

Editors' Summary: It has become regular practice for federal legislators to insert into annual appropriations bills riders having little to do with the appropriations process. Last year, under the sponsorship of the Senate Majority and Minority Leaders, a bill that would have exempted recyclers from CERCLA "arranger" and "transporter" liability was almost enacted as a rider to the omnibus appropriations bill for fiscal year 1999. This Dialogue examines that rider and the changes it would have wrought to CERCLA.

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.

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.

The Resource Conservation and Recovery Act (RCRA), the Clean Water Act (CWA), and the Clean Air Act (CAA) represent federal regulatory regimes for protecting the environment. Although each statute initially places administrative responsibility in the hands of the U.S. Environmental Protection Agency (EPA), each encourages states, to varying degrees, to take primary responsibility for implementing the statutory regime.

In Environmental Federalism Part 1: The History of Overfiling Under RCRA, the CWA, and the CAA Prior to Harmon, Smithfield, and CLEAN, the history of judicial and administrative decisions relating to overfiling under the Resource Conservation and Recovery Act (RCRA), the Clean Water Act (CWA), and the Clean Air Act (CAA) was analyzed. The history showed that the U.S. Environmental Protection Agency (EPA), with limited exceptions, generally was understood to have overfiling authority under RCRA, the CWA, and the CAA. The limited exceptions focused on two situations.