"china is launching the world's largest weather-control machine, with the ability to modify the weather in an area similar to the size of alaska. china has never shied away from doing things on a massive scale and this is yet another example of the chinese government working on an unprecedented scale". china estimates it to produce up to 10 billion cubic meters of rainfall each year. for comparison, more than 30 countries get less than 10 billion cubic meters of precipitation per year.