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Environment

Salvage crews remove debris from the collapsed Francis Scott Key Bridge from the Fort McHenry channel on June 3, 2024. (Photo by Bobby Petty, U.S. Army Corps of Engineers, Baltimore District)
May 29, 2026

Key Bridge litigation is hard to keep track of. Here’s a guide before civil trial.

Litigation over the Francis Scott Key Bridge collapse is just ramping up. Here's what to know ahead of a civil trial.

Brooke Lierman, comptroller of Maryland, speaks at a recent Board of Public Works meeting in Annapolis. (Robert Stewart/Capital News Service)
May 22, 2026

MD officials vote to expand park registration program

The Maryland Board of Public Works is allowing the Maryland Park Service to move forward with its plan to expand an online registration system for state parks and shooting ranges.

The winter crab dredge survey in Virginia from March 2023. (USA TODAY Network via Reuters Connect)
May 21, 2026

Blue crabs show ‘promising bump’ in Chesapeake Bay, but vigilance urged

Blue crab populations in Maryland and Virginia are seeing a significant increase, a Chesapeake Bay survey shows.

Cattle graze in a field in Montana’s Fergus County in 2022. (Demetrius Freeman/The Washington Post)
May 4, 2026

Most of US covered by drought, with MD and DC among worst affected

Large swaths of the U.S., including Maryland and Washington, D.C., are in desperate need of soaking rainfall as drought continues to deepen.

Maryland and 13 other jurisdictions are suing the U.S. Environmental Protection Agency, saying it has failed to live up to revised standards in the Clean Air Act for airborne fine particulate matter, putting public health at risk. (Photo by Kristina Blokhin/Stock.adobe.com)
Apr 28, 2026

MD joins lawsuit against EPA over rules on airborne ‘fine particulate matter’

Maryland and 13 other jurisdictions sued the EPA for its failure to meet a deadline to determine which parts of the country are in compliance with a 2024 standard for “fine particulate matter.”

Water flows into the C&O Canal from the enhanced bypass pumping system on Feb. 21, 2026. (Louie Palu/ Agence VU — For The Washington Post)
Apr 21, 2026

MD, DOJ both sue DC Water over Potomac River sewage leak

The Justice Department and Maryland's attorney general each sued D.C. and its water and sewage authority over the leak of untreated wastewater into the Potomac River.

The Supreme Court in January 2026. (The Washington Post)
Apr 17, 2026

Supreme Court hands win to Chevron, Big Oil in environmental damage case

The Supreme Court sided with Chevron, ruling that it can fight an environmental damage lawsuit in federal court — a decision that could affect the outcomes of nearly a dozen other lawsuits.

The seal of the U.S. Justice Department is seen on the podium in the Department's headquarters briefing room before a news conference with the Attorney General in Washington, January 24, 2023. (REUTERS/Kevin Lamarque/File Photo)
Apr 16, 2026

Federal judge rejects Trump administration bid to block Hawaii climate lawsuit

A federal judge dismissed a Trump administration lawsuit seeking to stop Hawaii from suing fossil fuel companies in state court over climate change.

With the Trump National Golf Club clubhouse in the background, Camp Calleva kayak instructor Steve McKone helps one of his campers while teaching a lesson on the Potomac River during a camp session on July 17, 2017. (Washington Post photo by Toni L. Sandys)
Apr 15, 2026

Potomac River tops list of country’s most endangered rivers

The Potomac River tops the list of most endangered rivers in the country, according to a report that cites the impacts of a recent sewage spill and data centers in the region.

Environmental chemist Leah Griffin (center), who leads the team at the county’s PFAS lab, is joined by (from left) William Smith Jr., Superintendent of Laboratories for the Harford County DPW Division of Water and Sewer; Lawrence Slattery, Chief of Operations for the division; County Executive Bob Cassilly; and Auther Hannon III, senior computer engineer for the division. (Harford County)
Apr 9, 2026

Harford is first in MD to operate state-certified PFAS testing lab

Harford is the first county in Maryland to operate its own lab certified by the Maryland Department of the Environment to test for PFAS.

D.C. Water officials spent weeks repairing the section of the Potomac Interceptor that records show was first identified as a potential problem in 2018. (Louie Palu/Agence VU/For The Washington Post)
Apr 3, 2026

Catastrophic Potomac River sewage spill in MD followed years of delay on repairs, review finds

The D.C.-area utility responsible for a massive sewer line that failed catastrophically had planned to reinforce the aging section years ago but repeatedly delayed construction, an investigation found.

Natural gas is seen burning on a kitchen gas stove in the dark. (Depositphotos)
Apr 2, 2026

Federal judge upholds MD regulation phasing out gas appliances

A federal judge upheld a Maryland state regulation on large buildings that seeks to phase out gas appliances and reach net-zero emissions by 2040.