"Texas Attorney General Ken Paxton announced Wednesday he filed a challenge against the new EPA and Army Corps of Engineers definition of which waterways and wetlands are subject to federal permitting requirements."

"Industry is pursuing various technologies to help solve the global plastic waste problem, but environmentalists say new recycling techniques only make environmental problems worse."

"An underground fire at an Alabama landfill has continued to pollute the air in eastern parts of the Birmingham region more than 50 days after a fire began underground, according to air quality monitors."

"This winter has already brought significant snowfall to much of the U.S. Historically, more snow has meant more road salt. It’s an effective way to clear roads — but also brings cascading environmental impacts as it washes into rivers and streams."

"Mammals in the ocean swim through a world of sound. But in recent decades, humans have been cranking up the volume, blasting waters with noise from shipping, oil and gas exploration and military operations. New research suggests that such anthropogenic noise may make it harder for dolphins to communicate and work together."

"Children living near a small California airport were more likely to have elevated levels of lead in their blood, a new study found."

"The controversial release of more than a million tonnes of water from the wrecked Fukushima Daiichi nuclear plant will begin in the northern spring or summer, Japan’s government has said – a move that has sparked anger among local fishing communities and countries in the region."

"The nation’s top consumer watchdog agency raised concerns about indoor air pollution from gas stoves. A political firestorm ensued."