Dig a hole in the mountains in the northwest of Beijing to let Siberian cold air drive in and disperse the smog. Will this change the temperature and climate?

There is still a limit to human transformation of nature, and this method is of little use. Strong winds can only improve the haze weather in a short time, and treat the symptoms rather than the root cause. It is really not desirable.

If this is really done, the first temperature and climate will not change much, because a reduction will not play much role. The influence of the mountains in the northwest on the wind is a whole result, but opening a hole has no effect. Second, the gale in Beijing is well known, and now there are often gale weather exceeding magnitude 7. Even if the Western Hills are completely leveled, the climate change in Beijing can be ignored.