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The Profound Climate Implications of Supreme Court’s West Virginia v. EPA Decision

Union of Concerned Scientists

First and foremost, despite some fossil fuel interests swinging for the fossil fuel-favored fences, the Supreme Court’s decision in West Virginia v. First and foremost, despite some fossil fuel interests swinging for the fossil fuel-favored fences, the Supreme Court’s decision in West Virginia v.

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U.S. Climate Law: A Broad & Rapidly Growing Field

Legal Planet

EPA regulation of greenhouse gas emissions under the Clean Air Act (CAA) A. Climate change as reason for threatened or endangered status under Endangered Species Act. Investment and incentives for clean technologies under the Inflation Reduction Act. Standing based on climate impacts C. Co-benefits E.

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EPA’s Power Plant Carbon Rules Are Critical—and Complex. Here’s What to Know, and What to Watch.

Union of Concerned Scientists

The IRA gave us effective tools for cleaning up the power sector through dedicated support for the rapid and widescale deployment of renewable resources and the technologies that support them. Section 111 of the Clean Air Act constrains how EPA sets standards—but gives states wide latitude in implementation.

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Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Union of Concerned Scientists

California has a longstanding leadership role on transportation pollution, and the Clean Air Act grants the state the right to set strong vehicle emissions standards. We know the truck industry has a number of technological solutions to reduce its emissions, but we need regulators to take action to make it happen.

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Unraveling LA’s Hydrogen Combustion Experiment

Legal Planet

But with the recent influx of government incentives for hydrogen production, new and improving production and storage technologies, and greater political will than ever before, H 2 ’s reputation is gaining favor. But for many of these use-cases, hydrogen doesn’t do the job particularly well, at least as compared to existing technology.

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Livestock Operations Are Responsible for Over Half of California’s Methane Emissions—Why Won’t CARB Regulate Them?

Legal Planet

CARB’s Low Carbon Fuel Standard (LCFS) seeks to incentivize the production and sale of alternative, lower emissions transportation fuels in order to displace conventional fossil fuels. To identify which fuels should be promoted, CARB calculates the life cycle greenhouse gas emissions from transportation fuels.

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UCS Testimony on the Clean Hydrogen Production Tax Credit

Union of Concerned Scientists

Upstream methane emissions are a potentially substantial share of the overall emissions rate of fossil fuel-based hydrogen production facilities. If negative carbon intensity fuels are allowed, they cannot be used to offset any amount of a facility’s real emissions.