Excellent research by Steven J. Davis and other researchers at the University of California, Irvine linking Chinese to US air pollution was published on Sunday in the Proceedings of the National Academy of Sciences.  

“When you buy a product at Wal-Mart, it has to be manufactured somewhere. The product doesn’t contain the pollution, but creating it caused the pollution.”

“We’ve outsourced our manufacturing and much of our pollution, but some of it is blowing back across the Pacific to haunt us”

“Given the complaints about how Chinese pollution is corrupting other countries’ air, this paper shows that there may be plenty of blame to go around.”

The research was widely covered, including:

China’s industry exporting air pollution to U.S., study says, LA Times

How the Western World Enables China’s Air Pollution, Atlantic Cities

US Air Pollution Tied To Chinese Exports: Strong Winds Blow Nitrogen Oxides, Carbon Monoxide Across Ocean, Medical Daily

China pollution wafting across Pacific to blanket US, The Guardian

For more information on research done by Steven J. Davis, and links to other articles on this subject, check out his publications page.