from Changing China:

The Battle for Beijing’s Air (video)

December 7, 2009

CHINA-TRAFFIC/On the first day of the Copenhagen climate change summit, Beijingers were experiencing what authorities called a 'slightly polluted' day.

from Environment Forum:

Air pollution permits back on track in Southern California

October 13, 2009

California's Governor Arnold Schwarzenegger is working to burnish his green legacy in the Golden State. But one of his latest moves to lift a hold on air pollution permit applications is not likely to make environmentalists happy.