"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."

"The Eastern Shoshone and Northern Arapaho have long fought for water sovereignty on the Wind River Indian Reservation, but their effort is being challenged by federal legislation and a changing water landscape."

"Shipments of uranium ore from a revived mining operation just south of the Grand Canyon are expected to resume in February after the Navajo Nation reached a settlement with the mining company, clearing the way for trucks to transport the ore across the largest Native American reservation in the U.S."

"The Great Salt Lake is shrinking, and new research published Tuesday reports that saving it requires reducing the amount of farmland that is irrigated in the region."

"Elon Musk’s Boring Company is constructing a planned 68-mile tunnel system beneath Las Vegas where drivers will ferry passengers around the urban core in Teslas. Despite its size, the project, because it’s privately funded, has not gone through the vetting typical of public transit systems, including lengthy governmental studies."

"The U.S. Fish and Wildlife Service (USFWS) will keep endangered species protections for grizzly bears in place in most of the western U.S., the agency announced Wednesday, rebuffing states that petitioned for their removal."

"President Joe Biden plans to create two new national monuments in California in the coming days, according to two people briefed on the announcement, aiming to cement his environmental legacy before President-elect Donald Trump takes office."

"Wyoming will sell a 1-square-mile (2.6-square-kilometer) parcel of pristine land bordering Grand Teton National Park to the U.S. government for $100 million after Gov. Mark Gordon signed off on a deal Friday that ends the state’s longstanding threats to unload it to a developer."

"The Montana supreme court upheld a landmark trial court decision last August in favor of 16 young people who said their health and futures were being jeopardized by climate change, which the state aggravates through its permitting of energy projects."

"A legal fight over an 88-mile proposed railway in Utah has set the stage for the U.S. Supreme Court to decide how federal agencies evaluate the environmental impacts of projects requiring their approval, a decision with the potential to drastically shift how projects are permitted across the nation."