In fact, most of the reasons for snowfall are the same. It is to let a certain area change a certain weather by artificial means, but this way is to interfere with nature, not to say that people want to change it. Its function is to increase the snowfall in this area on the premise of natural snowfall, so as to achieve our desired purpose, especially for some places lacking water resources, we can use this method to alleviate local weather or disasters.
Moreover, artificial snowfall must meet a series of natural weather conditions in order to achieve the purpose of snowfall through catalysts. Some people here can't help but ask whether the snowfall generated by the catalyst will pollute the area or cause harm to the human body. In fact, these catalysts are harmful to the human body and the environment, but we all know that the harmful conditions are a certain concentration or accumulation to a certain extent, but the amount of catalysts scattered is really small, so we don't have to worry about it, which will have an impact on the environment or the human body.
Therefore, when the government begins to artificially increase snow or precipitation in a certain place, we don't have to be afraid, because these harmful concentrations to the human body are very low and can be easily eliminated by our bodies.