Bush marking Earth Day with visit to
Smokies President Bush is observing Earth Day today with a stop in the nation's most-visited -- and most polluted -- park.
The Great Smoky Mountains National Park, which straddles the North Carolina-Tennessee border, had nine million visitors last year. But smog and acid rain from coal-fired power plants put it well outside federal clean-air guidelines. Just this week, the administration and environmentalists agreed on a June deadline for new anti-pollution plans. They were supposed to have been issued today.