Air Quality

California Pulls Back On Sustainable Aviation Fuels

Air Resources Board abruptly withdraws proposal to mandate low-carbon jet fuel

California regulators had an opportunity this year to be a global leader on requiring airplanes to use low-carbon jet fuel. But the Air Resources Board announced earlier this month that it will back off from its earlier proposal to require jet fuel providers to decarbonize, through the agency’s landmark low carbon fuel standard program. Why …

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Clean Air and the Turbocharged Shadow Docket

Guest Contributors Sean Donahue & Megan Herzog write that coal advocates offer troubling new grounds for the Supreme Court to stay EPA’s carbon pollution standards.

The Supreme Court is currently considering eight emergency (or “shadow docket”) requests from coal advocates (coal-mining companies, coal-burning electricity generators, and allied State attorneys general led by West Virginia) to bar implementation of new EPA rules limiting carbon pollution from coal- and gas-burning power plants while legal challenges to the rules proceed—what is known as …

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New Report: Charging and Financing Electric Trucks

CLEE/UCLA Law report & webinar offers solutions to meet California’s zero-emission trucks goal

California has groundbreaking goals to require automakers to sell, and large fleets to purchase, zero-emission trucks and buses in increasing percentages, starting this year. But these goals will only be achievable if the state has sufficient charging infrastructure to fuel the vehicles, along with available financing to help truck owners purchase or lease them. To …

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Is 2025 the Year of the Carbon Tax?

Regulating inside the fenceline

Carbon border adjustment mechanisms are increasingly the talk of Washington. UCLA Law’s Kimberly Clausing explains some of the options on the table.

There’s a big, important tax debate looming next year—one with opportunities and risks for climate policy, particularly the idea of a carbon tax. It can be hard to see this debate thanks to the daily churn of the 2024 presidential election, but it’s there on the horizon if you squint. For one thing, we’ll likely …

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Grid Experts Weigh in on EPA’s Good Neighbor Plan for NOx

UCLA Emmett Institute faculty submit amicus brief in Utah v. EPA, a major ozone case, on behalf of some of the nation’s leading grid experts.

Last year, EPA issued a new federal implementation plan to address interstate pollution from nitrogen oxides under the Clean Air Act’s Good Neighbor Provision. The Good Neighbor Provision is designed to address interstate pollution: those instances where emissions from upwind states impose harms across state lines, effectively shifting the costs of controlling their pollution to …

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The Supreme Court & Interstate Pollution

It was puzzling that the Court agreed to hear the case. How has it ruled? And why?

Months ago, the Supreme Court agreed to hear an “emergency” request to stay EPA’s new rule regulating interstate air pollution.  Like most observers, I was puzzled that the Court was bothering with the case before the D.C. Circuit even had a chance to consider the merits of the challenges. Months later, the Court has finally …

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The Ten Most Important U.S. Environmental Laws

An image of the U.S. Capitol Building in the evening.

Some of the choices may surprise you.

What are America’s most important environmental laws? Some are familiar, such as the federal air and water pollution laws, and the Endangered Species Act. But there are other people rarely hear about — even in environmental law courses — but have done a lot to protect the environment.

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Counting the Climate Costs of Warfare

There are calls for nations to disclose their military-related greenhouse gas emissions as researchers try to tally the climate impacts of war in Ukraine and Gaza.

What if I told you that nations around the world were ignoring a significant amount of their greenhouse gas emissions by omitting an entire dirty sector from their tally? Would you be horrified? Would you want to close that loophole so that parties to international agreements are required to report these hidden emissions as part …

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Critical Insights on the Mineral Boom: Part II

A vision to ensure enforceable community benefits from mineral extraction: Insights from the Emmett Institute’s “Powering the Future” symposium.

“Voice, agency, and meaningful compensation.” Those are the things that California Tribal Affairs Secretary Christina Snider-Ashtari said must be granted in exchange to some communities bearing the brunt of the energy transition and the new mineral boom, as recounted in Part One of this series. All week, my colleagues and I are sharing summaries, outcomes, …

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The Problems with the SCOTUS ‘Good Neighbor’ Arguments

Guest contributors Megan Herzog and Sean Donahue write that last week’s argument in the case of EPA’s Good Neighbor Rule shows the perils of agency rulemaking cases on the Supreme Court’s shadow docket.

Megan M. Herzog (former Emmett/Frankel Fellow at UCLA School of Law 2012-2016) and Sean H. Donahue are partners at Donahue, Goldberg & Herzog, which represents the Environmental Defense Fund, a Respondent-Intervenor in the Good Neighbor Rule litigation.   Last Wednesday, the Supreme Court did something it has done only three times in the last half-century—it heard …

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