"The Environmental Protection Agency on Thursday announced what officials called a historic effort to rein in a class of long-lasting chemicals that pose serious health risks to millions of Americans. But environmental groups and residents of contaminated communities said that the agency’s “action plan” is short on action, saying ample evidence exists to regulate the chemicals in the nation’s drinking water."

The U.S. Environmental Protection Agency will announce on Thursdays limits on how much toxic chemicals from cookware and carpeting are allowed in drinking water. ... Acting administrator Andrew Wheeler will make the announcement at 9 a.m. EST."

"Gov. Gavin Newsom, diving into one of California’s most contentious water issues, said Tuesday he wants to downsize the Delta tunnels project. The Democratic governor also set out to overhaul state water policy by naming a new chair of the state’s water board."

"In a case with ramifications for the Chesapeake Bay, environmental groups have joined with several Northeastern states to challenge the lack of federal action to reduce interstate air pollution."

"Scientific monitoring in the Pacific Ocean, using buoys to take seawater temperatures, screeched to a halt when the government recently shut down for 35 days. But those efforts to monitor El Nino, the warming of the equatorial Pacific Ocean that affects global weather patterns, are just some of the shutdown’s impacts on science that Kevin Trenberth describes."

"David Bernhardt, the agency’s acting chief, wants to roll back endangered-species protections on a tiny fish, a change that benefits few outside a California group he once represented as a lobbyist."

"Another North Atlantic right whale calf and its mother have been spotted - the critically endangered species’ second confirmed newborn of the winter birthing season."