So bad you left in 2016, I'm in Beijing since 2012 and I can tell 2017 has been the year of change for air pollution. I really expect the next months/years to improve as well because the AQI still occasionally reach 300-350 and it's already far too high.

I guess we will have to wait another 5-7 years to reach US and Europe current air quality though.

I know it’s gotten better this year but keep in mind they were promising this for a long time, it wasn’t there first try at the problem. Regardless, I don’t want my kid getting asthma, so we really had no choice but to leave, even given the current improvement it would have still been a problem. The air might be clean for the next generation or the one after that, but it’s not going to be for us.

I’m tired of reading headlines like “Beijing to have clean air by 2015” wait no “2020” ok maybe “2025.” Glad that they’ve made progress but the government has lost all credebility otherwise.

The air quality in China is objectively terrible, but I do think that the government are serious about fixing it. China is now the biggest market for electric vehicles and photovoltaic panels by a considerable margin. The issue is being talked about quite openly on Chinese social media, which suggests that the Party have a great deal of confidence.

While I’ll admit the current thrust is promising, a lot of it is extremely fragile. The electric vehicle push is completely incentive drive of course; e.g. why Beijing has so many Tesla’s these days despite the 2X markup has to do with the separate EV allocation in its plate lottery. Is that economically sustainable? Who knows. Solar is even more precarious as the country still lacks to the grid to move it from West to East where it is needed. LanZhou has cleaned up nicely, but it isn’t helping anything in Hebei much.

The current push to cleanup air pollution has hit some walls in being too harsh. China lacks rule of law at the local level, factory owners commonly skirt regulations, so what does happen is very heavy handed (close all factories that do X vs. just the ones that are out of compliance). They actually had to let up on the campaign after CNY this year because too much production was taken offline.

True, but remember that 4,000 people died in four days in London during the "pea souper" of 1952, when visibility was about a metre or less:

https://www.bbc.co.uk/news/av/stories-42357608/death-by-smog...

https://www.pinterest.co.uk/grahamsrealm/great-smog-of-1952/...