Items by J. Madeleine Nash
Its defenders won a long fight over water with Los Angeles. Now, drought is raising new questions about its future.
In California's White Mountains, scientists ponder the fate of beardtongues, bristlecone pines and butterflies in a rapidly warming world.
Rare and tiny spring-dwelling creatures are threatened by everything from invasive species to Las Vegas' plan to pump groundwater from a rural part of Nevada.
Ecological consultant Stuart Weiss believes that carefully managed grazing could help save a rare California butterfly from extinction.
Paleo-oceanographer James Zachos points to evidence of the last time climate change acidified the oceans, some 55 million years ago.
- Marcia Ewell on National Park Service centennial shares limelight with scandals
- Todd McMahon on No Bikes in Wilderness. Period.
- Steve McCarthy on The end of coal is bringing a wrenching transition
- jim bolen on In Utah, the fight for a Bears Ears monument heats up
- Lance Pysher on No Bikes in Wilderness. Period.