This Comment looks at the background of national scenic trails and lawmakers’ intent for the experiences these trails should provide, analyzes the difference in meaning between the terms and concepts of “on” and “along,” and considers the width of adjacent management areas that lawmakers implied with the use of the latter term. It also examines the management implications of these interpretations, and where agencies and nonprofit trail management partners may go from here.

The relationship between the Convention on Biological Diversity and the Trade-Related Aspects of Intellectual Property Rights regime under the World Trade Organization is complex. The manner in which intellectual property rights (IPRs) pertaining to genetic resources (GRs) and associated traditional knowledge (ATK) are handled is the main source of this dissonance.

On February 7, 2024, the U.S. Environmental Protection Agency (EPA) announced a final rule imposing a stricter limit for the fine particulate matter (PM2.5) national ambient air quality standard (NAAQS). The annual exposure standard for PM2.5, currently set at 12 micrograms per cubic meter of air, will now be 9 micrograms per cubic meter, marking the first time in over eight years that EPA has strengthened any NAAQS. The rule is predicted to have many health benefits, such as preventing 4,500 premature deaths by 2032, which may particularly affect overburdened communities.

In April, the Bureau of Land Management (BLM) proposed new regulations governing land management decisions on public lands. Dubbed the “conservation rule,” this rule seeks to protect intact landscapes, restore degraded habitat, and manage for ecosystem resilience.

The Inflation Reduction Act (IRA) of 2022 added seven new sections to the Clean Air Act (CAA) and provided the U.S. Environmental Protection Agency (EPA) with substantial new authorities and resources. This Article examines these new amendments and the EPA-related provisions of the IRA, and explains the major implications of this historic legislation.

On October 29, 2021, the U.S. Supreme Court granted certiorari in West Virginia v. Environmental Protection Agency, a petition filed by several states and coal companies attacking the U.S. Environmental Protection Agency's (EPA’s) regulatory authority under the Clean Air Act (CAA). The Court’s holding in this case would determine EPA’s continued ability to use the CAA—including the national ambient air quality standard (NAAQS) program—as a climate change tool.

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.

On January 28, 2021, President Joseph Biden issued Executive Order No. 14008 initiating the “30 by 30” program to “conserve” 30% of the nation’s lands and waters by 2030, but to date, the Administration has yet to clarify the standards defining "conservation" lands. In September 2021, Nada Culver, the acting director of the Bureau of Land Management (BLM), and Chris French, the deputy chief of the Forest Service’s National Forest System (NFS) confirmed at an annual Public Lands Council meeting that they believe the nation’s grazing lands “should [be] include[d]” in the 30 by 30 count.

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.

Over the past 50 years, tremendous progress has been made in reducing air pollution under the Clean Air Act. Nevertheless, while air quality has improved greatly for much of the nation, there are still places where the goal of attaining national standards has still not been reached. This is often true in urban locations that are affected by multiple pollution sources; typically, these areas are also environmental justice communities. Recent events have called attention to the urgent need for concrete action to address the many problems of these communities.