I was in Beijing last May.
Worst air pollution I've ever seen. At noon, I couldn't see from the windows in the airport terminal to the first taxiway...visibility way less than 1/4 mile.
They ultimately cancelled all flights because of the air pollution.
The Beijing air pollution is due to factories and coal burning power plants.
The fact that the article is blaming this level of air pollution on wood burning stoves is a dead giveaway that this is a set-up for an environmental agenda.