China creates 55 billion tons of artificial rain a year—and it plans to quintuple that

China creates 55 billion tons of artificial rain a year—and it plans to quintuple that

Back in 2150 BC, Emperor Yu sealed his place in China’s history of eminent rulers by controlling ...概要を表示 Back in 2150 BC, Emperor Yu sealed his place in China’s history of eminent rulers by controlling the Yellow River’s annual flood, saving waterlogged crops. Today China’s rulers face the opposite problem: It’s water scarcity that threatens farms. So instead of the Yellow River, the Chinese government is controlling the rain. It does that by “cloud-seeding,” the colloquial term for rocket-launching