The Enid News and Eagle, Enid, OK

Archive

China Pollution Cance_Hass.jpg

A tourist wearing a mask walks in front of Tiananmen Gate on a polluted day in Beijing, China. What many commuters choking on smog have long suspected has been scientifically validated: air pollution causes lung cancer. The International Agency for Research on Cancer declared on Thursday air pollution is a carcinogen, alongside known dangers such as asbestos, tobacco and ultraviolet radiation. (AP Photo/Alexander F. Yuan, File)