"Since 1978, researchers have scooped up and measured tens of thousands of birds that died after crashing into buildings in Chicago during spring and fall migrations. Their work has documented what might be called the incredible shrinking bird."

"The widely used solvent methylene chloride poses an even greater chance of hurting people and the environment than the EPA found in an analysis that determined most uses of the chemical are too risky, environmental, health, and labor groups said Dec. 3."

"The Environmental Protection Agency (EPA) on Tuesday released its newest definition for ambient air in a move critics say will ease burdens on polluting industries. On its surface, the guidance deals less directly with air quality than it does with fencing."

"On a soggy field in eastern North Carolina, Jason Tew and his crew of loggers are cutting trees and sorting logs into piles based on their size and the type of wood."

"EPA is poised to leave its national soot standards unchanged after a fractured advisory panel yesterday formally opted to recommend the status quo. While career EPA staff had tentatively concluded that the annual exposure benchmark is too weak to prevent thousands of premature deaths, a majority on the Clean Air Scientific Advisory Committee found otherwise."

"Invasive species — everything from rats to Burmese pythons — have spread to more than half of national parks, according to new research published this week, which also offers suggestions for stopping non-native animals while safeguarding native species into the future."

"Officials in the Florida Keys announced what many coastal governments nationwide have long feared, but few have been willing to admit: As seas rise and flooding gets worse, not everyone can be saved."

"A new Harvard University study for the first time links hospitalizations for common blood, skin and kidney ailments to short-term exposure to fine particulate matter from fossil fuel combustion and wildfires."

"Tariffs on solar panels implemented under President Trump have significantly harmed the U.S. solar industry, according to a new analysis released Tuesday."

"A debate over Montana landowners’ potential liability for toxic metals in their backyards, deposited over decades of smelting operations, dominated oral arguments involving the landowners, the U.S. EPA, and Atlantic Richfield Co. before the Supreme Court Dec. 3."