environmental-law

April 16, 2026

Washington, DC - Sixteen health and environmental groups have filed a petition with the U.S. Environmental Protection Agency outlining severe flaws in its rule to repeal the Endangerment Finding and motor vehicle climate pollution standards and describing how the Clean Air Act requires the agency to reconsider that damaging action. 

February 27, 2026

WASHINGTON, DC – Today, the Sierra Club released the first batch of communications and calendars received from the Department of the Interior in the wake of the organization’s lawsuit following the agency’s failure to respond to public records requests for the documents.

February 18, 2026

Washington, DC – A broad coalition of health and environmental groups sued the Environmental Protection Agency today over its illegal determination that it is not responsible for protecting us from climate pollution and its elimination of rules to cut the tailpipe pollution fueling the climate crisis and harming people’s health.

February 12, 2026

Washington, DC – Today, in a brazen assault on the health and welfare of the American public, the Trump administration announced its rule revoking the Environmental Protection Agency’s longstanding greenhouse gas endangerment finding under the federal Clean Air Act. With the stroke of a pen at a White House, Donald Trump and EPA Administrator Lee Zeldin have formalized climate denialism as official government policy and moved to eliminate EPA’s ability to directly fight the climate crisis. 

February 10, 2026

Washington, DC – Today, in a brazen assault on the health and welfare of the American public, the Trump administration announced that it will finalize its rule revoking the Environmental Protection Agency’s longstanding greenhouse gas endangerment finding under the federal Clean Air Act. With the stroke of a pen at a White House event this Thursday, EPA Administrator Lee Zeldin will formalize climate denialism as official government policy and move to eliminate EPA’s ability to directly fight the climate crisis.

January 23, 2026

Washington, DC – Today, the Sierra Club is highlighting the transparency generated by the organization’s Environmental Law Program in the first year of Donald Trump’s second term in office.

January 15, 2026

WASHINGTON, DC — The Sierra Club has filed another lawsuit against the Trump Administration for refusing to reveal information, this time related to the Administration’s efforts to erase history on public lands. The Sierra Club seeks to hold the Department of the Interior accountable for its failure to respond to basic Freedom of Information Act requests within the timeline required by law.

December 18, 2025

WASHINGTON, D.C. — Conservation groups sued the Trump administration today for scrapping decades-old rules protecting Americans’ right to participate in environmental reviews for logging, mining, drilling, road construction and other industrial projects on their public lands.

December 18, 2025

Franklin County, Illinois - Today, Prairie Rivers Network and Sierra Club Illinois are suing the Tennessee Valley Authority (TVA), a federally owned public power provider, to block the federal government from a massive expansion of coal mining in Illinois. 

November 17, 2025

Washington, DC – A new memo released today by the Sierra Club analyzes the legal risks polluters would be exposed to if Donald Trump and Administrator Lee Zeldin choose to rescind the Environmental Protection Agency’s landmark Endangerment Finding, as they 

October 30, 2025

Oakland, CA — The Sierra Club has filed another lawsuit against the Trump Administration after its Department of Government Efficiency, or DOGE, failed to provide materials in response to a Freedom of Information Act request filed by the organization.

October 16, 2025

Washington, DC – As the Trump administration continues to undo federal regulations that protect our air and water, including proposals to eliminate standards for vehicle emissions and revoke the 2009 endangerment finding, the Sierra Club today released 952 pages of emails between EPA officials and external organizations provided in response to the environmental organization’s Freedom of Information Act request.