Fossil fuel giant Suncor want the case to be heard in federal court, despite the Colorado Supreme Court having already ruled that the case can be heard in state court.

The Supreme Court kicked off its new term Monday with tough questions about the future of Boulder’s blockbuster climate suit. The justices are considering Suncor v. Boulder, which presents complicated questions about who should pay for the costs of climate-driven disasters.

Microplastic concentrations in Nevada’s Truckee River increased nearly tenfold during spring runoff, according to new research that offers a glimpse into how plastic pollution moves through some western waterways.

Wildfires are burning more land in watersheds that provide water to communities across the West, raising concerns about water quality and infrastructure as fires become larger and more frequent.

After 48 hours of rain across New Mexico, Arizona, Texas and Mexico, the immediate danger from Hurricane Polo — now a tropical storm — has shifted from the falling water to the runoff it leaves behind.

In Wyoming’s Beartooth Mountains, scientists are studying ice that has survived for thousands of years — and what could help some patches persist as the climate warms.

The National Weather Service has issued a flood watch for much of southern and south central Colorado starting Tuesday, warning that some areas could get up to three inches of rain.

Officials in New Mexico, Arizona, Texas and other western states are preparing for the aftermath of Hurricane Polo, which pummeled Mexico on Tuesday and kept barreling toward the U.S. border.

This year has been one of the tightest financially for Silt-based Colorado Mountain Honey, in large part due to monthslong delays in payment for pollinating work done in March. Beekeepers across the country are facing similar delays, waiting to be paid hundreds of thousands of dollars from California-based tech startup Beewise.

Michael Childers of CSU says last year’s poor snow season could have ripple effects on the ski industry, as skiers evaluate where they want to spend their money. Resorts will also have to contend with ongoing drought as they prepare for the 2026-27 season.