I agree with the economists who have grown increasingly skeptical about the data China publishes, and the recent revisions open a new episode in the debate over its energy use and greenhouse gas emissions
Beijing issued its first ever red alert for smog on December 7 urging schools to close and invoking restrictions on factories and traffic that will keep half of the city's vehicles off the road. The red alert, the most serious warning on a four-tier system adapted a little over two years ago, means authorities had forecast more than three consecutive days of severe smog. (1)
