"On 'good' bad days, the shells lay open at the bottom of the river, shimmering in the refracted sunlight. Their insides, pearl white and picked clean of flesh, flicker against the dark riverbed like a beacon, alerting the world above to a problem below."

"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."

"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."

"The Trump administration is sending a new “surge” of rangers from US national parks such as Zion, Yosemite and the National Mall to patrol the southern border for crossings by illegal immigrants."

"The Bureau of Land Management appears poised to lose the majority of its Washington, D.C.-based staff as part of its plans to relocate out West next year, numerous sources both within and outside the bureau have told E&E News."

"Ethical investors, including the Church of England, plan to extend their campaign for miners and other big businesses to stop funding industry associations that block progress on U.N. goals to curb climate change, they said on Tuesday."

"At least 11 department officials have cashed out for jobs with fossil fuel interests, lobbying firms or other private companies."

"Native American tribes, environmentalists, state and federal agencies, river rafters and others say they have significant concerns about proposals to dam a Colorado River tributary in northern Arizona for hydropower."