Items by Lin Alder

Cold War toxin seeps into Western water
Ammonium perchlorate, a toxic ingredient in rocket fuel, has appeared in Nevada’s Lake Mead as well as in other Western water sources used for drinking and irrigation
Can the tide turn for Walker Lake?
As Nevada's Walker Lake gets smaller and saltier, the Paiute tribe, local farmers and the BLM wrestle over water rights and wonder how to keep the threatened Lahontan cutthroat trout alive without destroying the area's economy.
Drought pinches Colorado River reservoirs
A serious drought in the Colorado River watershed has California and Arizona wondering where the water will come from.
Utah's Grand Staircase turns 5
In Utah, Grand Staircase-Escalante National Monument no longer provokes the noisy protest that attended its founding, but some locals are still waiting to see if tourism will boost the economy.
Utah town goes 'U.N. free'
La Verkin, Utah, declares itself a "U.N. Free Zone" in a controversial ordinance that would have required U.N. supporters to identify themselves as "U.N. Agents," file "activity reports" and pay unspecified fees.
End of a dam saga
Jim Trees plans to replace a 140-year-old diversion dam in a Zion National Park wilderness study area with an "environmentally friendly" weir just outside the park boundary.
A park rediscovers a surprising asset
In Utah, Zion National Park launches its long-awaited new public transport system, and most visitors seem to enjoy the convenience - and the lack of noise and traffic in seeing the park by bus.
Home Free
The Humane Society of the United States has begun its own land trust, the Wildlife Land Trust, which is particularly dedicated to wildlife protection.