Articles on Environment

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A firefighter watches as the NCAR Fire burns on March 26, 2022, in Boulder, Colo. Michael Ciaglo via Getty Images

Emergency alerts may not reach those who need them most in Colorado

Increasing awareness can help close the gap on the number of people signed up for emergency alerts, but that won’t happen without increased accessibility.
The difficult-to-detect meningeal worm is spread by white-tailed deer and is a notorious killer of moose. AP Photo/Jim Cole, File

Parasitic worms bury themselves in the brains of moose and elk – a new test can help diagnose these animals to prevent disease spread

White-tailed deer host these brain worms, but they don’t actually get the disease, which makes it harder for biologists to monitor its prevalence.
Sandhill cranes can be spotted in many states, but in the 1930s their populations had crashed to a few dozen breeding pairs in the eastern U.S. Rsocol/Wikimedia Commons

The surprising recovery of once‑rare birds

It’s not every day that you see a 4-foot-tall bird, but it’s happening more often. Several fascinating species are nesting in and near towns once again.
U.S. Geological Survey staff check monitoring equipment in Suicide Basin in June 2025. By August, the basin had filled with meltwater. Jeff Conaway/U.S. Geological Survey

Glacial lake flood hits Juneau, Alaska, again, reflecting a growing global risk as mountain glaciers melt

Suicide Basin, an ice-dammed lake on an arm of Mendenhall Glacier, has filled up with meltwater and sent destructive surges of water into Juneau for 3 straight summers.
A worker moves irrigation tubes on a farm in Pinal County, Ariz. A two-decade drought has made water supplies harder to secure. Carolyn Cole/Los Angeles Times via Getty Images

Climate models reveal how human activity may be locking the Southwest into permanent drought

The drought has been linked to the Pacific Decadal Oscillation, a natural climate pattern. A new study finds global warming is now influencing that natural phenomenon.
U.S. Interior Secretary Doug Burgum, left, takes a selfie with Energy Secretary Chris Wright, center, and EPA Administrator Lee Zeldin in front of the Trans-Alaska oil pipeline. AP Photo/Jenny Kane

4 laws that could stymie the Trump EPA’s plan to rescind the endangerment finding, central to US climate policies

The 2009 finding that greenhouse gases endanger public health underpins many U.S. climate policies. A new report meant to challenge it may run afoul of several laws.
Moose may have been in Colorado longer than previously thought. Illustration courtesy of Ettore Mazza

Moose have lived in Colorado for centuries – unpacking the evidence from history, archaeology and oral traditions

During much of the last century, moose were apparently rare in Colorado. But lately, encounters with humans are becoming more common as the population increases.
Scientist Aubrey Hillman, one of the authors of this article, extracts a core of mud from the bottom of Black Pond in June 2025. Patrick Dodson/University at Albany

Industrial pollution once ravaged the Adirondacks − decades of history captured in lake mud track their slow recovery

Acid rain and metals from power plants, vehicles and industries reached remote mountain lakes for years. Evidence from those lakes today shows the success of the Clean Air Act.

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