"Two bills in Congress would prohibit the Environmental Protection Agency from using hundreds of chemical assessments completed by its IRIS program in environmental regulations or enforcement."

"The number of butterflies in the contiguous United States declined by 22 percent this century, a collapse with potentially dire implications."

"Butterflies are rapidly fluttering out of existence from coast to coast, according to a new assessment published Thursday, at a rate that scientists worry could upend ecosystems and undercut pollination that sustains America’s crops.

"It is a ritual that takes place every winter — federal and state wildlife managers use remote cameras, scat collection, radio telemetry devices and helicopters to count Mexican gray wolves that are roaming mountain ranges in parts of New Mexico and Arizona." "This year’s count shows the recovery of Mexican wolves is inching forward."

"Federal firings expected to undermine oil and gas permitting"

"Forecasters with the National Weather Service were among those who lost their jobs, raising questions about the service’s ability to continue providing the free, accurate, up-to-the minute information on potential hazards like heat waves, blizzards, tornadoes and hurricanes that is critical to industries such as agriculture and aviation, as well as the weather reports the general public relies on."

"Democrats on Capitol Hill erupted at the news that Donald Trump’s EPA plans to scrap a landmark scientific finding that underpins U.S. climate policy."

"The Trump administration has begun firing employees at the National Oceanic and Atmospheric Administration, one of the world’s premier centers for climate science."

"Utah could become the first state to ban fluoride in its drinking water, alarming public health experts and dentists who note the mineral’s role in reducing tooth decay across the nation. The Republican-controlled statehouse sent the legislation to Gov. Spencer Cox (R) last week after both chambers passed it largely along party lines."

"Environmental Protection Agency Administrator Lee Zeldin has privately urged the White House to strike down a scientific finding underpinning much of the federal government’s push to combat climate change, according to three people briefed on the matter who spoke on the condition of anonymity because they were not authorized to comment publicly."

"The Trump administration has blocked work that is central to major international climate change research, and barred federal scientists and diplomats from attending a key global climate event in China this week, according to three officials close to the situation who spoke to The Washington Post on the condition of anonymity because they were not authorized to speak publicly."