October 17, 2005
Modern-day scientists, retracing the path of Joseph Grinnell in Yosemite National Park, document conspicuous changes in the natural world and find a culprit unimagined by biologists 100 years ago: global warming. Also in this issue: On his 12th attempt, Rep. Richard Pombo, R-Calif., succeeds in pushing a bill through the U.S. House designed to reform the Endangered Species Act and end critical habitat protection.
- 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
- David Taft on Deaths renew calls for national parks to rescind BASE jumping bans
- Ryan Stevenson on Can human judgment handle avalanches?