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On May 1, 2025, the federal government brought separate suits against both New York and Vermont alleging that these state’s “climate Superfund” statutes are unconstitutional on multiple grounds.

On April 11, 2025, the Marine Environment Protection Committee (“MEPC”) of the International Maritime Organization (“IMO”) announced the approval of a long-awaited framework to reduce greenhouse gas (“GHG”) emissions from the international shipping industry to further the IMO’s carbon intensity reduction goals.

A series of recent actions undertaken by President Biden, near the end of his term, and President Trump, in the early days of his presidency, have called into question a key issue under the Outer Continental Shelf Lands Act (“OCSLA”) — whether the President can revoke a previous President’s withdrawal of areas of the United States Outer Continental Shelf (“OCS”) from oil and gas leasing.

The past few years have seen concerted efforts — both domestically and globally — advancing the reporting and disclosure of various climate- and sustainability-related metrics by businesses and investors.

On March 14, 2025, President Trump signed legislation disapproving the Environmental Protection Agency’s regulation implementing the Inflation Reduction Act’s tax on methane emissions from the oil and gas sector.

If past is prologue, while the second Trump administration is expected to take a number of actions that could lead to increased volatility with respect to renewable identification number (“RIN”) prices just as the first did, there are signals that the administration may take a more deliberate approach this time to reduce shocks to the RIN market, all the more given the interest in supporting renewable fuel production as a domestic fuel source. And while the California Air Resources Board (“CARB”) took steps last year that impact the ability of biogas projects to generate Low Carbon Fuel Standard (“LCFS”) credits, state legislative headwinds could eventually result in the opening of new environmental credit markets to shore up demand for renewable natural gas (“RNG”). Overall, while significant uncertainty and risk of RIN volatility remains, there continue to be signals from both the federal executive and legislative branches in support of the federal Renewable Fuel Standard (“RFS”).

On December 26, 2024, New York Governor Kathy Hochul signed the Climate Change Superfund Act (“CCSA” or the “Act”) into law.

Despite the Biden administration’s public support for carbon capture and sequestration (“CCS”), we saw neither faster CCS permit approvals from the U.S. Environmental Protection Agency (“EPA”) nor a significant push towards state primary enforcement authority (“primacy”) during the former president’s tenure.

On February 19, 2025, the Council on Environmental Quality (“CEQ”) released a pre-publication version of an interim final rule (the “Interim Rule”) to rescind all of CEQ’s previous and current regulations implementing the National Environmental Policy Act (“NEPA”) alongside a memorandum (the “Memo”) to federal agencies providing guidance on how agencies should revise their individual NEPA regulations and how they should manage NEPA reviews in the meantime.

In his first two days in office, newly inaugurated President Donald J. Trump signed a flurry of Executive Orders, including several aimed at supporting the traditional energy industry.

In early March 2024, the U.S. Securities and Exchange Commission (“SEC”) finalized its climate-related disclosures rule (The Enhancement and Standardization of Climate-Related Disclosures for Investors) (the “Final Rule”).

On February 3, 2025, the U.S. District Court for the Central District of California granted a partial motion to dismiss filed by the California Air Resources Board (“CARB”), dismissing the claims that SB 253 (the Climate Corporate Data Accountability Act) and SB 261 (the Climate-related Financial Risk Act) (collectively the “California Climate Laws”) violate the Supremacy Clause and limitations on extraterritorial regulation.