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Environment

A legislative audit of the Maryland Department of the Environment, based at Montgomery Park in Baltimore, hit the agency Thursday on several issues of spending and oversight, particularly its oversight of lead paint inspection. (Photo by Bryan Sears/Maryland Matters)
Apr 23, 2026

MD could have identified fraudulent lead inspections sooner, auditors say

An audit said deficiencies in Maryland’s inspection program for lead paint in rental homes made it easier for a string of fraudulent inspections to go undetected for years.

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.

A salt marsh on Kent Island in Queen Anne's County is part of the Chesapeake Bay watershed. (Sam Gauntt/Capital News Service)
Apr 10, 2026

MD lawmakers pass emergency bill to address blue catfish problem

Maryland lawmakers passed an emergency bill to combat the growing population of blue catfish in the Chesapeake Bay and protect the waterways from the invasive fish.

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.

Natural gas is seen burning on a kitchen gas stove in the dark. (Depositphotos)
Mar 27, 2026

Judge rules for Montgomery County in suit challenging ‘gas ban’

A U.S. district judge ruled in favor of Montgomery County in a lawsuit in which trade associations challenged a so-called "gas ban" mandating all-electric standards for new buildings.

Cigarette butts are seen outside of Peabody Heights Brewery in Baltimore. (Ian Round/The Daily Record)
Mar 27, 2026

Tobacco companies claim immunity in pollution lawsuit by Baltimore

Two tobacco companies are claiming that a nearly 30-year-old national settlement agreement makes them immune from an environmental lawsuit brought by Baltimore City.

Above and at top, otters Mac and Tuck quickly make themselves at home at the Delmarva Discovery Center. Tuck, a rescue otter, makes himself very comfortable in his new spacious home at the Delmarva Discovery Center. The Discovery Center is located in Pocomoke City. (USA TODAY Network via Reuters Connect)
Mar 25, 2026

Museum on Eastern Shore plans to reopen after fundraising campaign

After announcing that it would close, Delmarva Discovery Museum on Maryland's Eastern Shore is now rallying community support in an effort to remain open.

Environmental Protection Agency Administrator Lee Zeldin speaks, accompanied by President Donald Trump, at the White House in Washington, D.C., Feb. 12, 2026. (REUTERS/Jonathan Ernst)
Mar 20, 2026

MD, states sue Trump administration over EPA fuel rule rollback

Maryland and other states are suing President Donald Trump's administration over his plans to slash federal car emission and fuel economy standards.