On the final day of the 2021-2022 term, the U.S. Supreme Court released its decision in West Virginia v. Environmental Protection Agency. The majority (6-3) opinion limited the U.S. Environmental Protection Agency’s (EPA’s) authority to regulate greenhouse gas emissions from power plants under Clean Air Act §111(d), in part by invoking the “major questions doctrine.” The decision has implications for EPA’s authority both to regulate emissions from stationary sources and to regulate greenhouse gases more broadly.

This Comment examines the legal framework for state protection of nonfederal waters and its implications for cooperative federalism. After a brief overview and legal background, it identifies some recent state actions that attempt to fill gaps in coverage created by changes in federal interpretations of the Clean Water Act. It then summarizes the current scope of state regulation of waters in every state, in order to discern the likely impact of changes at the federal level on the status of waters in the states.

Proposed oil and gas pipelines have faced a myriad of legal challenges in the past several years. Even where pipeline proponents have prevailed, the cost and delay of protracted litigation has often caused cancellation of pipeline projects. In addition, presidential transitions have led to abrupt reversals of pipeline policies, which courts have often reviewed skeptically.

The Joe Biden Administration has proposed reversing a number of the Donald Trump Administration’s changes to the National Environmental Policy Act (NEPA) regulations by again requiring federal agencies to evaluate the direct, indirect, and cumulative environmental impacts of projects under environmental review. On April 20, 2022, the first phase of those amendments was finalized, and on April 21, the Environmental Law Institute hosted a panel of experts to explore the changes to NEPA implementation, and how they might impact climate change policy and environmental justice.

The Tana River in northernmost Norway is the most diverse Atlantic salmon river in the world. Its native salmon population has declined dramatically and resulted in a fishing ban that has affected indigenous life and distressed the local economy. Concern is mounting over the secondary infestation of Pacific pink salmon, transplanted decades ago, which creates a potential threat to the river’s genetic diversity and challenges the regime structures of international fisheries.

We are told the transition to a zero-carbon economy will depend upon the United States’ ability to assure a sufficient supply of rare earths and minerals such as cobalt, nickel, or lithium. The Biden Administration is intent on promoting some new form of a critical mineral policy, and calls for reforming the 1872 Mining Law have persisted for well over one hundred years. This Article is designed to provoke a meaningful conversation about a critical minerals policy informed by our past.

In 2009, when carbon dioxide (CO2) levels were at 387.43 parts per million, the Center for Biological Diversity and 350.org submitted a citizen petition calling on the U.S. Environmental Protection Agency to take steps necessary to institute a national ambient air quality standard (NAAQS) for greenhouse gas (GHG) emissions under §§108-110 of the Clean Air Act (CAA). For 12 years, the petition was simply ignored. Then, the day President Donald Trump left office, outgoing EPA Administrator Andrew Wheeler issued a letter denying the petition.

Salmon require cool temperatures to migrate and reproduce. The Clean Water Act (CWA) requires states to develop and implement water quality standards sufficient to produce fishable waters. Nearly a half-century after its 1972 enactment, the modern federal statute’s goal of fishable waters has yet to be achieved in the case of salmon streams.

New oil and gas pipeline construction is increasingly controversial, with environmental and indigenous groups warning of leaks and spills, increased reliance on fossil fuels, and infringement upon indigenous land. Recent setbacks to three projects—the Dakota Access Pipeline, Keystone XL Pipeline, and Atlantic Coast Pipeline—reflect shifting legal, economic, and policy pressures facing new construction. On September 30, 2020, the Environmental Law Institute hosted a panel of experts who explored the emerging challenges facing oil and gas pipelines and discussed their future.

Nearly nine million tons of plastic waste flow into our oceans each year, arriving in many ways—ranging from polluted rivers and waterways to the wastewater from our washing machines. Once in the ocean, this pervasive plastic pollution is nearly impossible to clean up. If there is anything positive to say about such a broad and complex challenge, it is that there are multiple ways to tackle the problem. Legal and policy solutions are increasingly moving away from the piecemeal, product-by-product approach of single-use plastic bans