Artificial Snow

Could it be a possible approach to solving global warming?

This news reminds me of artificial rain or snow. Growing up in China, I have heard many times, in Shenzhen, and in Beijing, that the rain or snow was artificially made by the meteorological station for some special purposes, such as cooling the air in hot summer, or when there is some special occasion going on. I have no ideas how they did that, nor do I know what the advantages or disadvantages it brings. Environmental modification, could anything be possible to go wrong with it?