Canada Broadcasting Corporation (CBC) reported on September 23, China's severe air pollution, pollution of wind to the United States; United States 20%-30% of mercury pollution from Asia.

University of Washington Professor of atmospheric and environmental chemistry Chai Fei (Dan Jaffe) says it has always been concerned about Asia's atmospheric conditions. More specifically, concerned about air pollution drifting into North America from Asia in the process. "For a long time, we have extensive records of pollutants drifting into North America. Mercury pollution originating from Asia accounted for the United States of 20%-30%. Carbon dioxide, carbon monoxide, nitrogen oxides and other sources, only 5-8 days will be gone with the wind to the United States, across Northern Alaska to Southern California. ”

China energy strategy Research Center, Institute of international studies, energy experts say, "both greenhouse gas emissions and the volume of coal production and coal-fired, China is the world's largest. Since 2003, China doubled the increase, is the sum of the rest of the world in coal-fired. Amount from coal combustion in China is still slightly and then stabilized. At present, China has begun to take measures to improve the efficiency of coal-fired. ”

Chai Fei said, "compared to other sources of pollution, the greenhouse gas carbon dioxide is difficult to control, and treatment is expensive. We only have one Earth, as little as three weeks, carbon dioxide can be spread through the world, endangering everyone. ”