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.
- Larry Glickfeld on Trekking across Colorado’s fragmented wildernesses
- Yue Li on On those who live and die along the border
- Shelley Stallings on Photos: Diving for delicacies
- Mark York on Getting over the ‘taboo’ in a gun-rights conversation
- Robert Hooper on Trekking across Colorado’s fragmented wildernesses