Boise Region Grapples With Smog, a Growing Threat

The Caldwell Express sprints between this high-desert capital and its outermost exurb. The express bus seats 40 people, but sometimes it is standing room only for the 23-mile trip. And there is no reason to wait for the next bus: the Caldwell Express runs each way just once a day.

“If you don’t make it,” said Sonia Johnson, waiting at one of the main downtown bus stops on a recent day after work, “you’re toast.”

By WILLIAM YARDLEY

Full Story: http://www.nytimes.com/2009/01/23/us/23boise.html?_r=1&hp