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Supreme Court of the United States › Environmental Policies › Greenhouse Gas Emissions

The United States Supreme Court is the highest court of the United States and is charged with interpreting federal law, including the United States Constitution. The Court's docket is largely discretionary... more +
The United States Supreme Court is the highest court of the United States and is charged with interpreting federal law, including the United States Constitution. The Court's docket is largely discretionary with only a limited number of cases granted review each term.  The Court is comprised of one chief justice and eight associate justices, who are nominated by the President and confirmed by the Senate to hold lifetime positions. less -
ArentFox Schiff

Supreme Court Allows Fuel Producers to Contest California’s Emissions Rules

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For decades, California has been granted unique deference in setting Clean Air Act (CAA) emissions limitations for California-sold vehicles through use of a state-specific waiver....more

Jones Day

Evolving NEPA Regulations May Facilitate Energy Projects

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The National Environmental Protection Act ("NEPA") requires that federal agencies assess the environmental effects of their proposed actions prior to making final decisions, including decisions on issuing federal permits,...more

Carlton Fields

Supreme Court Ruling Speeds Environmental Reviews, Limits Legal Challenges to Energy Projects

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On May 29, 2025, the U.S. Supreme Court issued a decision in Seven County Infrastructure Coalition v. Eagle County, Colorado, a case concerning the National Environmental Policy Act (NEPA) that limits judicial review of...more

Beveridge & Diamond PC

Outlook for Trump Administration Environment, Energy, and Natural Resource Regulation, Enforcement & Litigation

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Overview - Following our post-election Alert outlining major anticipated themes for environmental and natural resource law and policy in the second Trump administration, leaders from a number of our practices – many of...more

Goldberg Segalla

SCOTUS Declines to Review EPA’s Authority on California’s Vehicle Emission Standards

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In a significant development for environmental law and state autonomy, the Supreme Court of the United States (SCOTUS) recently declined to review whether the U.S. Environmental Protection Agency (EPA) has the authority to...more

Allen Matkins

California Environmental Law & Policy Update 10.18.24

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California officials have been working on a plan to preserve the state’s leading edge environmental and climate policies, in the event that former President Donald J. Trump returns to the White House and follows through on...more

ArentFox Schiff

Ten Environmental and Energy Issues to Watch in 2023

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What will happen in the environmental and energy space in 2023? The last year saw transformative changes in the environmental and energy space in the form of historic spending through the federal Inflation Reduction Act, a...more

Skadden, Arps, Slate, Meagher & Flom LLP

West Virginia v. EPA: Implications for Climate Change and Beyond

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Key Points - The U.S. Supreme Court’s decision in West Virginia v. EPA limits the EPA’s options for regulating greenhouse gas emissions, but the agency can still pursue emission reductions at individual power plants and other...more

Perkins Coie

Supreme Court Decision Portends Greater Judicial Scrutiny of FCC

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By a 6-3 majority, the U.S. Supreme Court in West Virginia v. Environmental Protection Agency held that the Environmental Protection Agency’s (EPA) efforts to regulate greenhouse gases by making industry-wide changes violated...more

Jones Day

U.S. Supreme Court Curbs Executive Power and Reach of EPA

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What Happened: West Virginia v. EPA - In West Virginia v. EPA, the Supreme Court ruled in favor of Jones Day client, the North American Coal Corporation, and determined that the EPA did not have clear authorization from...more

Herbert Smith Freehills Kramer

Supreme Court Rejects EPA’s ‘Clean Power Plan’ in Decision Raising Questions About the SEC’s Climate-Related Disclosure Rules

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On June 30, 2022, the U.S. Supreme Court held in West Virginia v. Environmental Protection Agency, 597 U.S. ___ (2022), that the Clean Air Act did not clearly authorize the Environmental Protection Agency (EPA) to create the...more

WilmerHale

Supreme Court on Climate: West Virginia v. EPA

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In one of the most significant environmental opinions of our time, the Supreme Court held in West Virginia v. EPA that Section 111(d) of the Clean Air Act does not give the Environmental Protection Agency (EPA) authority to...more

Quarles & Brady LLP

Supreme Court Curbs EPA’s Approach to Regulating GHG Emissions from Existing Power Plants

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On June 30, 2022, the United States Supreme Court issued its long-awaited decision in West Virginia v. EPA, a case challenging the scope of the United States Environmental Protection Agency’s (“EPA’s”) authority to regulate...more

Mayer Brown Free Writings + Perspectives

Supreme Court Decision in West Virginia v. EPA Casts Doubt on SEC’s Climate Proposal and Other Regulatory Initiatives

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On June 30, 2022, the U.S. Supreme Court decided West Virginia et al. v. Environmental Protection Agency, holding that the EPA lacks authority under Section 7411(d) of the Clean Air Act to limit greenhouse gas emissions from...more

Akin Gump Strauss Hauer & Feld LLP

This Week’s Climate Policy Update - July 2022

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[co-author: Leila Fleming] Supreme Court Restricts the EPA’s Authority to Mandate Carbon Emissions Reductions (NPR) - On Thursday, the Supreme Court invoked the “Major Questions Doctrine” in West Virginia v. EPA to...more

Stinson LLP

Supreme Court Rejects EPA's Power on Climate Change Regulations

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The U.S. Supreme Court rejected the U.S. Environmental Protection Agency’s (EPA) ability to regulate greenhouse gas emissions based on shifting from existing generation sources under Section 111(d) of the Clean Air Act (CAA)....more

Burr & Forman

Supreme Court Says EPA Went Too Far on Regulating Climate Change

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On June 29, 2022, the U.S. Supreme Court ruled that an arcane portion of the Clean Air Act (“CAA”), infrequently used by the EPA, could not serve as appropriate delegation of legislative authority to regulate greenhouse gas....more

Holland & Knight LLP

Supreme Court Limits Power of EPA, Regulatory Agencies for Greenhouse Gas Emissions

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The U.S. Supreme Court issued a long-anticipated ruling on June 30, 2022, regarding the authority of the U.S. Environmental Protection Agency (EPA) and other federal agencies to regulate greenhouse gas emissions from power...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Affordable Clean Energy Rule/Clean Air Act: D.C. Circuit Court of Appeals Vacates and Remands EPA ACE Rule

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On January 19, 2021, the U.S. Court of Appeals for the District of Columbia struck down the Affordable Clean Energy (“ACE”) rule. The Court issued a 185-page opinion (download here) within which it ultimately determined...more

Searcy Denney Scarola Barnhart & Shipley

I Wish for a Happy Earth Day

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April 22nd marked Earth Day, an annual celebration of environmentalism. The headline event of Earth Day 2016 was having 175 countries sign the Paris Agreement, which represents a global commitment to reducing greenhouse gas...more

Allen Matkins

California Environmental Law & Policy Update - February 2016 #2

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Environmental and Policy Focus - Supreme Court deals blow to President Obama’s efforts to regulate power plant greenhouse gas emissions - New York Times - Feb 9 - In a major setback for President Obama’s...more

Sheppard Mullin Richter & Hampton LLP

Only When a Permit is Required: The Supreme Court Caps the EPA’s Authority to Regulate Greenhouse Gas Emissions from Stationary...

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Utility Air Regulatory Group v. EPA et al. 573 U.S. ____ (2014) - On June 23, 2014, the United States Supreme Court held that the Environmental Protection Agency (EPA) overstepped its authority under the Clean Air Act...more

Allen Matkins

Renewable Energy Update -- July 2014

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Renewable Energy Focus - Supreme Court upholds EPA's power to regulate greenhouse gas: Allen Matkins - Jun 24: On Monday, June 23, in a long-awaited decision, the U.S. Supreme Court in Utility Air Regulatory Group v....more

King & Spalding

U.S. Supreme Court Restricts EPA Regulation of Greenhouse Gas Emissions

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On June 23, 2014, the U.S. Supreme Court issued its widely anticipated decision in Utility Air Regulatory Group v. EPA concerning the U.S. Environmental Protection Agency's regulation of greenhouse gas emissions (GHGs) from...more

Burr & Forman

Supreme Court Upholds Greenhouse Gas Emmission Limits for Large Industries, but Implementation Questions Remain

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On Monday, June 22, the U.S. Supreme Court issued a much anticipated decision in Utility Air Regulatory Group v. Environmental Protection Agency where it affirmed EPA’s authority to impose limits for greenhouse gas (GHG)...more

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