I was in Beijing last week and noticed the smog, of course, but as China grapples with Olympics and air quality I also saw something much more important. China is serious about energy efficiency and reducing greenhouse gases.
In recent months, the Chinese government has closed over 21 gigawatts of the dirtiest, most inefficient power plants. They didn't do this just for a temporary clean air benefit around Beijing - - it was done permanently all across the country. They also closed inefficient foundries, furnaces, and cement makers in huge numbers.