I think a huge problem in Thailand is this. The air pollution is being created year round. Half of the year the weather does not suppress the air pollution, half of the year the weather does suppress the air pollution. This allows enough time for people to stop worrying about the issue. If the weather did not suppress the air pollution for 6 months, then the air pollution issue would be persistent year round and it would be more likely that real action would be taken to reduce the problem. As it stands, it seems the cycle is the air gets bad, people get concerned, talkers start talking about making a change but don't actually do anything as they are really just buying time waiting for the air to get better at which point everyone forgets.
The air has been really decent lately. But I know the airpocalypse is returning in just a few months and historically speaking it will be worse this year then last, as each year it has gotten a little worse for the last 5 years.