The Maryland Attorney General’s Office filed twin lawsuits Tuesday against several manufacturers that used PFAS, also known as “forever chemicals,” in firefighting foam and a host of other consumer products.

In Maryland and several other Chesapeake Bay states, the decision will be blunted by the existence of state laws protecting wetlands newly excluded from federal oversight.

Seafood processors say federal rules on handling blue catfish hamper efforts to remove the invasive species from the Chesapeake Bay.

The Baltimore City Fire Department responded to a chemical leak at a W.R. Grace and Company facility in Hawkins Point shortly after 6:30 a.m. Friday.

The Chesapeake Bay’s blue crab population rebounded somewhat from last year, when an annual survey yielded its lowest estimate for the crustacean since tracking began in 1990. This year’s estimate is 323 million crabs, a 41% increase over last year’s 30-year low of 227 million crabs.

The federal Environmental Protection Agency has ordered the city to complete the installation of underground storage tanks for treated drinking water at Druid Lake and lake Ashburton by the end of the year.

The Marie Tharp and its crew will launch a five-month voyage Monday to map the seabed near Greenland and analyze the impacts of glacial melting caused by a warming climate.

The move of a duck decoy museum has set off concerns about how best to preserve the Eastern Shore art form.

Contaminated wastewater from the fiery East Palestine, Ohio, train derailment could be coming to Baltimore for treatment after all, but it wouldn’t be be released into the city sewer system. Instead, the treatment company would be sent back to Ohio under the latest plan proposed by the Norfolk Southern railroad.