"with a few years delay"...that's what was written, and that's what it is (u also confirmed that in ur post)...the rest is ur usual "climbing on the mirrors" thing.
Percentages of emissions cut and anything else (though important on the whole) has nothing to with that simple and true statement u previously denied, and now directly confirmed (as it is simply true), but try nevertheless to indirectly deny...
I was just pointing out the significance
of the 'with a few year's delay', which I believe makes a rather big difference. Each emission standard allows about half as much pollutants as the previous one, and vehicle numbers have grown exponentially - do the maths. It means total annual emmisions have still been steadily increasing, and the more the delay in adopting new standards the faster the increase.
Also there's the unfortunte fact that quality of fuel in China is pretty low - which means the same engine will pollute more in China than countries with fuels of higher quality. Coupled with dubious maintenance of fleets you frequently see huge black clouds coming out of a vehicle that's actually on EU2 standards.
There's no denying that more stringent emission standards are being adopted, but that doesn't automatically translate to reduced total emissions. In fact all the other related factors suggest otherwise. That's not just my own 'axe-to-grind' opinion - it's widely acknowledged among transport and environmental experts.
Many of these so-called western cities have way too many vehicles and pollution, and therefore they waste too much energy. These western cities should learn from Shanghai instead. Lower percentage of car ownership is actually a good thing.
Therefore, your concept of "has to settle for a substantially lower percentage of car ownership" is stupid.
Look, the current discussion is about total emission, not so much personal emission. Vehicle use and emission per person is undeniably lower in Shanghai than in Western cities, but total vehicle use and emission per square metre of land
is a totally different kettle of fish. Unfortunately the amount of air doesn't increase as population density increases, so the notion of total emission is actually more
relevant. So if we are to enjoy good air quality simply 'lower car ownership' won't do - it has to be a much, much, much
lower percentage. Judging by the shear number of my extended family members and friends in China have cars and once they do they forget everything public transport, and this is reflected in the wider society, I'm not sure Shanghai is going down the right path.