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Environmental Politics
Just how much is Asia's ozone to blame for bad air in the U.S.?
Just how much is Asia's ozone to blame for bad air in the U.S.?

High above the Big Sur coast, Ian Faloona is finding pollution on the edge of the continent, a place that should have some of the country's cleanest air. From an astronomical observatory on Chews Ridge in the Santa Lucia Mountains, the UC Davis atmospheric scientist has for the last three years measured ozone, the lung-damaging gas in smog, as it arrives to California. The monitoring site, more than 5,000 feet above sea level on a pine-studded overlook above the lowest layer of the atmosphere, gives Faloona access to undisturbed air from across the Pacific before it is fouled by U.S. pollution sources. He and other scientists at rural, high-altitude sites across the western U.S....

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