Thousands of tired, nerve-shaken, over-civilized people are beginning to find out that going to the mountains is going home; that wilderness is a necessity; and that mountain parks and reservations are useful not only as fountains of timber and irrigating rivers but as fountains of life.

—John Muir (1898)

A walk in the park is one of our finest cultural opportunities, a value that people expect to find available in their community.

—National Association of State Park Directors

The Defenders of Wildlife Judicial Accountability Project—undertaken with the assistance of the Vermont Law School Clinic for Environmental Law and Policy—seeks to fill a data void on the environmental record of President George W. Bush and his Administration by analyzing all reported environmental cases in which the Bush Administration has presented legal arguments regarding an existing environmental law, regulation, or policy before federal judges, magistrates, or administrative tribunals.

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.

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.

The focus of much dialogue and debate in the public eye over climate change and greenhouse gas emissions (GHGs) tends to focus on industrial emissions of pollution for manufacturing or the production of electricity. Emissions from transportation sources (like trains, planes, and automobiles) and from the heating, cooling, and lighting of buildings themselves are less readily visible, yet each constitutes roughly a third of America's total greenhouse gas emissions.