Surprised to see this headline–China Emerges as a Leader in Cleaner Coal Technology–but it explains something I have noticed here in Suzhou. My first year here, three years ago, it was rare to see a blue sky. I think it was only two or three days during the entire school year. Last year the air began to clear and it was more common to see blue skies and even an occasional star in the night sky. This year the air has been unusally clear, and perhaps a majority of days we can see a blue sky.
My friends have said it is because the rate of construction has died down a bit. Maybe it is a factor but I am happy to give China credit for developing the clean technology.