"A federal judge in Montana has blocked the development of a contested mine next to a wilderness area in the northwestern part of the state, handing a victory to environmental activists who had argued the project could endanger grizzly bears and bull trout."

"Nearly half of the salmon and trout species that live in California will be extinct in 50 years if nothing is done to improve water quality, protect wetlands and stream habitat, and fight climate change, scientists warned Tuesday in a wide-ranging study of native fish."

"U.S. EPA [Friday] cleared a path for the Pebble mine to begin the permitting process, promising to scrap the Obama administration's proposed restrictions on the southwestern Alaska project."

"An environmental group is suing the Trump administration, demanding it protect a species of shark."

"A robot zaps and vacuums up venomous lionfish in Bermuda. A helicopter pelts Guam's trees with poison-baited dead mice to fight the voracious brown tree snake. A special boat with giant winglike nets stuns and catches Asian carp in the U.S. Midwest."

"Scientists say the sunscreen we slather on when we head to the beach may be deadly for horseshoe crabs."

"Lawmakers from states surrounding the Chesapeake Bay on Wednesday expressed bipartisan criticism of President Donald Trump’s proposal to end federal support for cleaning up Chesapeake Bay."

"The number of Chinook salmon predicted to return to the Klamath River on the California-Oregon border this fall fishing season is around 11,000 fish. That is the lowest number in recorded history. Coho salmon is already listed under the Endangered Species Act in California and Oregon."

"State lawmakers have quashed talks over whether and how to open Chesapeake Bay oyster sanctuaries to harvest, passing a bill that blocks any changes to the protected areas' boundaries for nearly two years."

"On a rainy winter evening, biologist Kristin Aquilino was rummaging through the trunk of her pickup truck in the Bodega Marine Lab parking lot. She was looking for a rubber spatula—a tool she needed to pry a recently captured white abalone from inside an ice chest brimming with seawater."