This image, which was captured by NASA's Sea-Viewing Wide Field-of-View Sensor (i.e. SeaWiFS), dates back to January 2, 2000; it shows a layer of polluted air covering a large portion of southeastern China. The increased use of fossil fuels is largely to blame for the opaque haze. Given that China now tops the U.S. in total greenhouse gas emissions, just imagine what a satellite picture of the region would look like now...
Via ::Econbrowser: China's air pollution (blog)