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On May 12, 2016, the U.S. Environmental Protection Agency (EPA) finalized new regulations that directly target methane emissions from the oil and natural gas sector.

On March 29, 2024, EPA announced new emission standards for heavy-duty vehicles for model years 2027 through 2032.

Earlier this week, the EPA proposed the most significant update to the NESHAP for Coal- and Oil- Fired EGUs, commonly known as the Mercury and Air Toxics Standards ("MATS")...

Although there is no news on DOE's web site as of today, apparently FutureGen 2.0 future gen 2is dead.

Seyfarth Partner Andrew H. Perellis is quoted in this Forbes Legal News article today, Sierra Club's Legal Theory In Frackquake Case Draws ‘Star Trek' Comparison (March 31, 2016).

Winston & Strawn Partner Jonathan Brightbill participated on the Regulatory Transparency Project's podcast episode "Federalism or a Federal Standard? Fuel Economy and Greenhouse Gas Emissions Standard" on June 23, 2021.

Several sources are reporting that California Attorney General Kamala Harris' office is examining what Exxon knew about the science of climate change compared with what the company told investors.

In December 2025, the New York State Department of Environmental Conservation (NYSDEC) finalized regulations establishing a Mandatory Greenhouse Gas...

On November 7, 2025, the New York Department of Environmental Conservation and the New Jersey Department of Environmental Protection reversed their prior positions and approved Clean Water Act (CWA) Section 401 Water Quality Certifications and other environmental permits for the Transcontinental Gas Pipeline Company's.

While the Act certainly looks much like a tax, I failed to point out that the Act omits what is typically the biggest selling point of a carbon tax – its impact on prices and consumption behavior.

Pennsylvania is considering a bill, Senate Bill 258, that would create a presumption of abandonment for certain subsurface rights if those rights are not exercised for 50 years.

On January 31, the Pennsylvania Department of Environmental Protection (PADEP) finalized revisions to its "GP-5" air quality general permit.

In a significant move for energy policy and climate action, Pennsylvania has officially announced its withdrawal from the Regional Greenhouse Gas Initiative (RGGI), a cap-and-trade program aimed at reducing...

The new Environmental Protection Agency (EPA) Clean Air Act Rules for greenhouse gas (GHG) emissions from existing electric generating utilities were published in the Federal Register.

As we reported in April, the Attorney Generals of New York, California, Massachusetts, and the Virgin Islands have joined in a multistate investigation into Exxon's knowledge of the relationship between fossil fuels and climate change as far back as 1977.

The U.S. Environmental Protection Agency (EPA) recently finalized a rule granting the State of Texas primary permitting and enforcement authority over Class VI...

As the legislative calendar year comes to a close and the 2024 election comes into full swing, Congress is working to finalize the Fiscal Year 2025 (FY25) appropriations and messaging bills before the 2024.

Global Project, Energy and Infrastructure Finance Partner Allan Marks today authored a Forbes article titled "U.N. Panel Issues Scientific ‘Reality Check' On Threat From Climate Change."