The ice-pack runoff from Oregon's Cascade Mountains powers the state's hydroelectric plants and irrigates its pear orchards. Those ice packs have shrunk by 30 percent or more in the past 50 years, and state officials believe auto exhaust deserves much of the blame. -
States Adopt California's Greenhouse Gas Limits
The ice-pack runoff from Oregon's Cascade Mountains powers the state's hydroelectric plants and irrigates its pear orchards. Those ice packs have shrunk by 30 percent or more in the past 50 years, and state officials believe auto exhaust deserves much of the blame.-
By Sholnn Freeman