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A recent Commonwealth Court of Pennsylvania decision has thrown Pennsylvania’s actions on climate change into further disarray. In 2021, through regulatory action by its Department of Environmental Protection, Pennsylvania became a member of the Regional Greenhouse Gas Initiative (RGGI). RGGI is a collection of Northeastern and Mid-Atlantic states that have agreed to cap emissions of carbon dioxide (CO2) from electric power plants with 25 megawatts or more of generating capacity. The cap includes an overall regional limit and a cap for each state. Power plants must purchase allowances or offset their emissions (or pursue other options noted below) to collectively meet the state cap. But lawsuits have challenged Pennsylvania’s entry into RGGI, and on November 1, a memorandum opinion of the Commonwealth Court declared that Pennsylvania’s scheme for auctioning CO2 allowances under the state’s RGGI cap was an unconstitutional tax. The court voided the rulemaking.

In his first month in office, President Biden signed an executive order, “Tackling the Climate Crisis at Home and Abroad,” recommitting the federal government to climate action and environmental justice. In April 2023, an additional executive order, “Revitalizing Our Nation’s Commitment to Environmental Justice for All,” reinforced the administration’s commitment to a “whole-of-government approach to environmental justice.” The renewed commitment to environmental justice is gratifying for all who care about these issues — and the challenge of accomplishing whole-of-government implementation is real. Among numerous complicating aspects of this shift, one key challenge is state resistance — even outright hostility — to federal environmental justice priorities.

This summer, we marked the one-year anniversary of the Inflation Reduction Act (IRA), the United States’ most significant climate change law. Many advocates for environmental justice, myself included, were disappointed by several features of the Act, including the greenlighting of certain fossil fuel infrastructure projects. Nevertheless, the law unlocked unprecedented streams of investment into clean energy via tax credits and direct spending mechanisms.

A forthcoming article by John Knox and Nicole Tronolone brings international human rights law to bear on the issue of environmental justice. They argue that international human rights law provides a basis for treating some types of environmental inequities as human rights violations. In particular, they argue that the government has a duty to redress racial disparities in exposure to pollution and toxic chemicals. In their view, the government has conspicuously failed in this duty. In a recent article of my own, I tried to work through questions about how regulations could address economic and racial inequality.

The quest for environmental justice is also a quest for environmental human rights. The fight is the same fight, and the lessons learned in one arena can help in the other.

If a tree stands in the forest, and there’s no economist around to tabulate its benefits to humans, do those benefits still exist? For government agencies, the answer has long been, “No.” But the Biden administration is poised to change that.

Net zero, or carbon neutral, policies are changing the discussions around reducing greenhouse gas emissions. But, even with the wide adoption of the idea, questions remain. How much does the public understand about net zero? How is the policy defined, and what are its goals? Most significantly, is it addressing climate justice?

This week, the D.C. Circuit hears three cases challenging the use of federal regulations to push adoption of electric vehicles and to allow California to forge a path toward zero-emission cars. If all three cases go badly, the regulatory system would be disabled from playing a role in this area. This would be a huge setback, though there are reasons to think that it would only delay, rather than prevent, the transition to clean cars.

In three weeks, the U.S. Supreme Court starts its 2023 Term. There are two blockbuster cases on the docket. In one case, the issue is whether to overrule the Chevron case, which has been foundational to administrative law for the past four decades. In the other, the issue is agency power to sanction violations of the law. Given the Court’s conservative supermajority, there’s a real threat to the power of agencies like the U.S. Environmental Protection Agency (EPA) to issue regulations and enforce the law.