Cities Climate Law Initiative

48 posts

The End of Nationwide Injunctions for Federal Funding Award Terminations

On Friday, June 27, the Supreme Court’s term closed and the Court handed down its final opinions, including in a case called Trump v. CASA. The CASA plaintiffs challenged President Trump’s executive order on birthright citizenship, but the Court’s decision – which made no substantive holdings about citizenship or immigration […]

Atlanta’s New Ordinance Raises the Bar on Cool Roofs

Earlier this month, on June 2, 2025, Atlanta’s City Council unanimously passed a state-of-the-art ordinance to require cool roofs throughout the whole city, immediately propelling Atlanta to the forefront of local climate adaptation measures. The new requirements will help make Atlanta cooler, improve its air quality, and lower residents’ energy […]

In Final Ruling, New York Court of Appeals Greenlights New York City’s Building Performance Standards

Last Thursday, May 22, the New York State Court of Appeals – the State’s highest court – issued a decision upholding New York City’s Local Law 97 of 2019. Local Law 97 is one of the country’s most ambitious municipal climate policies, requiring the City’s largest buildings to comply with […]

Lincoln Memorial from afar

100 Days of Trump 2.0: Considerations for Cities and Community Partners

The first 100 days of the second Trump administration have proved volatile for local governments working to advance ambitious climate action. We have seen the freezing or termination of federal grants and other financial assistance, executive orders seeking to usurp state and local authority, the initiation of extensive deregulatory efforts, […]

Inside a Texas Showdown Over Cities’ Role in Adapting to Climate Change

Texas’ Third Court of Appeals will hear arguments tomorrow, April 23, 2025, in a case that cuts to the core of how state and local governments coexist. In Texas v. City of Houston, City of San Antonio, and City of El Paso, a group of Texas cities is challenging one […]

New Executive Order Tees Up Challenges to State and Local Climate Laws

On April 8, 2025, President Trump issued an Executive Order entitled “Protecting American Energy from State Overreach,” which directs the U.S. attorney general to work with department and agency heads to “identify all State and local laws, regulations, causes of action, policies, and practices (collectively, State laws) burdening the identification, […]

New York City’s Building Electrification Law Wins in District Court

Last week, building electrification secured an important victory in the United States District Court for the Southern District of New York. In Association of Contracting Plumbers of The City of New York, Inc. et al v. City of New York, plumbing and building trade groups challenged New York City’s Local […]

Cancelling the Buy Clean Program Will Not Cancel Low Embodied Carbon Construction

On his first day in office President Trump axed the Biden-era federal Buy Clean program. Buy Clean was designed to leverage the federal government’s buying power to help grow the low carbon building materials industry. Killing it will have consequences—buildings are responsible for a major share of global carbon dioxide […]