Word: horwood
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Dates: during 2000-2009
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Pilot John Horwood says the worse part about flying into Hong Kong is the suffocating, two-mile-thick blanket of pollution that hovers between 15 and 18,000 feet. "The whole cockpit fills with an acrid smell," says Horwood, who started noticing the cloud in 1997. "Each year it just gets worse and worse." What comprises this nuisance - a sprawling high-altitude mass of air pollution that stretches from the Arabian peninsula to the western Pacific Ocean - has long captured the curiosity of scientists. A report released in the Jan. 23 issue of Science breathes fresh air into that ongoing...