Articles on US West

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San Manuel, Calif., Assistant Fire Chief Ralph Tovar holds a young goat whose herd just spent a day eating brush and grass to reduce wildfire risk. Robyn Beck/AFP/Getty Images

Pyrograzing turns ordinary livestock into fire prevention heroes, so why isn’t it used on public lands more often?

Targeted grazing is gaining interest as fire risk rises, particularly in hard-to-manage areas of the Western US. But it isn’t always as simple as it seems.
Tree canopy like in this Wyoming forest affects stream flow, the climate and life on land. Elyna Grapstein/BLM

Ancient forests took 100,000 years to recover from the last global warming period similar to today – Wyoming fossils reveal what happened

Understanding what happened in these forests 56 million years ago may help humanity recognize similar thresholds before we cross them again, the lead author of a new study writes.
Andrew Rowley watches a wildfire burning from a distance after evacuating his home in Spokane, Wash., on Aug. 1, 2026. AP Photo/Young Kwak

Why the Spokane wildfires became so catastrophic

Extreme fire conditions converged in suburban neighborhoods built into the forests, shrubland and grasslands and quickly spread.
A large rock glacier fills a valley in Grand Teton National Park in Wyoming. Google Earth: Google, Airbus, Landsat, Copernicus

You’ve never heard of these glaciers, but they’re becoming critical climate havens as America’s iconic mountain glaciers and their water fade

They’re called rock glaciers, and they might not look like much, but they’ll continue to provide meltwater after the world’s iconic white glaciers are gone.
Visitors trek the Sand to Snow National Monument in Southern California, a popular area for camping, hiking, hunting and other activities. Bob Wick, BLM/Flickr

Interior secretary manages vast lands that all Americans share − and can sway the balance between conservation and development

The Interior Department manages about one-fifth of all US land. Its secretary mediates among many competing uses for it, from recreation to energy production.
Lava spatters from a vent at Kilauea in Hawaii during an eruption in September 2023. M. Patrick, USGS, via NPS

Could we use volcanoes to make electricity?

We don’t generate power directly from volcanoes, but their presence is a sign that there are good geothermal resources underground that can be tapped.
Rocky Mountain fires leave telltale ash layers in nearby lakes like this one. Philip Higuera

What 2,500 years of wildfire evidence and the extreme fire seasons of 1910 and 2020 tell us about the future of fire in the West

As the climate warms, devastating fires are increasingly likely. The 2020 fires pushed the Southern Rockies beyond the historical average. Is there hope for the Northern Rockies?
Fires are increasing in high mountain areas that rarely burned in the past. John McColgan, Bureau of Land Management, Alaska Fire Service

Fire danger in the high mountains is intensifying: That’s bad news for humans, treacherous for the environment

Fires here can affect meltwater timing and water quality, worsen erosion that triggers mudslides, and much more, as two scientists explain.
Sprinklers water a lettuce field in Holtville, California with Colorado River water. Sandy Huffaker/AFP via Getty Images

The Colorado River drought crisis: 5 essential reads

Two decades of drought have reduced the river’s flow by one-third compared to historical averages. The Biden administration is considering mandatory cuts to some states’ water allocations.

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