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.
- Lee Rimel on Illegal bike trails and a Forest Service crackdown divide a town
- Fred Swanson on Is tech ruining the wilderness?
- Rick Masters on Deaths renew calls for national parks to rescind BASE jumping bans
- John Finch on Illegal bike trails and a Forest Service crackdown divide a town
- W John Faust on Freeway closure by flash flood should teach us a lesson