"Rising ocean temperatures, a consequence of climate change, are known for bleaching and killing corals. But a study, published today in Marine Biology, reveals another overlooked culprit: excess nitrogen."

"The Trump administration said late on Friday it was issuing final rules to suspend a 2016 Obama administration regulation that more than doubled penalties for automakers failing to meet fuel efficiency requirements."

"The Environmental Protection Agency is preparing to weaken rules that for the past quarter-century have given communities a voice in deciding how much pollution may legally be released by nearby power plants and factories."

"A mining company says it won’t carry out cleanup work ordered by the U.S. Environmental Protection Agency as part of a Superfund project in southwest Colorado."

"Three Democratic lawmakers are raising concerns about the state of coastal U.S. oil and gas pipelines."

"New York’s health department will set the nation’s lowest allowable level for industrial chemicals that have contaminated some communities’ drinking water."

"President Trump delivered a full-throated defense of his administration’s environmental record Monday, despite relaxing nationwide limits on air and water pollution and reversing course on U.S. climate policy."

"When the Conowingo Dam opened to fanfare nearly a century ago, the massive wall of concrete and steel began its job of harnessing water power in northern Maryland. It also quietly provided a side benefit: trapping sediment and silt before it could flow miles downstream and pollute the Chesapeake Bay, the nation’s largest estuary."

"All of Mississippi's Gulf Coast beaches have been closed for swimming as the expanding bloom of toxic blue-green algae blankets the state's waters."