People, ideas, and discoveries that impact North Carolina and the world
July 2008
Global Study Puts Scholar in the Thick of It
During a trip to China funded by the National Science Foundation last year to study global warming, Yiyi Wong found herself immersed in the raw material she had come to analyze – literally.
"There's a yellow haze in the atmosphere in Beijing," she says. "I was there for three months and there were only two days when I actually saw blue sky."
The haze is made up of dust, smoke, soot and other particulates. Some of it comes from natural sources, like volcanoes and forest fires, but most is the result of human activities, primarily the burning of fossil fuels in vehicles and factories. As Wong discovered, it's everywhere.
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