Items by J. Madeleine Nash
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.
- Ricardo Small on In Arizona, the people move ahead of the politicians
- Dean Nyffeler on New data released on violent threats to federal employees
- John Crosse on The Los Angeles wetland wars
- John Worlock on The U.S.’s only rare-earth mine files for bankruptcy
- Andy Grosland on The pain thief of Spokane