Will a large number of fireworks and firecrackers affect the weather?

No, because the main component of gunpowder is soil, hehe, it's a surprise. The firecrackers we set off are only equivalent to a small forest fire and will not have any impact on nature. Moreover, the smoke of gunpowder is very toxic, which is much less toxic than the toxin in cigarettes, so it is far less harmful to human body than smoking. Moreover, the total number of firecrackers and smoke emissions set off every year (nationwide) is less than a quarter of a city's annual automobile exhaust emissions.

For another example, if a person is allowed to breathe automobile exhaust, he will suffocate in a few seconds. If you collect all the smoke released by a group of firecrackers and let a person breathe, that person will cough at most.