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California is demonstrating that its promises on climate change are not just hot air; they're a policy priority for the State that will require groundbreaking action.

Last week, Judge Hittner, in an opinion which was admirably scrupulous in not trying to dodge the 5th Circuit remand, imposed a $20 million penalty against ExxonMobil.

In a first-of-its-kind ruling on Oregon's Plastic Pollution and Recycling Modernization Act (RMA or the Act), U.S. District Court Judge Michael Simon on February 6...

This week, the 6th Circuit Court of Appeals held, in Merrick v. Diageo Americas Supply, that the Clean Air Act does not preempt source state common law remedies seeking to control air pollution...

After a two-year rulemaking process, on Dec. 8, 2025, the Minnesota Pollution Control Agency ("MPCA") finalized a rule that, with very limited exemptions, imposes a first-of-its-kind reporting requirement...

California’s second auction of greenhouse gas allowances exceeded expectations, with allowances clearing above both the reserve price and the price predicted by leading market analysts.

The Supreme Court’s 2013 term just began but it is already shaping up to be an important one for power plant owners and operators.

The initial due date for producer reports under California's Plastic Pollution Prevention and Packaging Producer Responsibility Act is fast approaching.

On September 27, 2023, environmental law organization ClientEarth released a report highlighting the growing potential for legal risk associated with biodiversity loss in the agriculture and seafood sectors...

Revised U.S. EPA Position on Carbon Dioxide Emissions as a Primary Contributor to Global Warming

Utilities and municipalities may face additional liability and regulatory risks after the Environmental Protection Agency's recent proposal to impose federal limits on PFAS...

The Supreme Court concluded its momentous term last week, saving the long-anticipated West Virginia v. EPA ruling for the last day of announced opinions. The Court's decision limiting the scope...

The Sierra Club filed a petition for review challenging certain provisions of nine EPA rules that provide for affirmative defenses against alleged Clean Air Act violations.

In the Sixth Circuit case, the Sierra Club had urged the court to hold that only discharges explicitly authorized by a general permit were shielded from suit by the permit shield defense.

California’s first carbon allowance auction on November 14, 2012 featured plenty of demand but a lower-than-expected closing price, based on results released on Monday by the California Air Resources Board (CARB). California’s cap-and-trade program requires that certain regulated entities must acquire a carbon allowance for each metric ton of greenhouse gas they emit in the state beginning in 2013.

EPA was ordered to take final action on a Clean Air Act § 126(b) petition filed by the State of Connecticut, asserting that emissions from the Brunner Island Steam Electric Station in Pennsylvania contribute to nonattainment in Connecticut.

On March 21, 2012, the United States Supreme Court reversed the Ninth Circuit in a much anticipated decision that will likely impact the Environmental Protection Agency’s (EPA) broad use of compliance orders to enforce environmental laws.

The commissioners of the TDEC and the TDA recently responded to EPA Administrator Scott Pruitt's request to States for comments regarding the definition of WOTUS.