原文开头
As countries experience water scarcity, efforts to engineer rainfall are increasing. But do they work, asks Alec Luhn O N A cold, windy night in November 2025, a quadcopter drone took off from a farm field at the foot of the Bannock mountain range north of Salt Lake City, rising 4000 metres into thick clouds. A fan with anti-icing propellers kicked into action, blowing yellow dust out of a cannister attached to the back of the drone. Cloud-seeding company Rainmaker was trying to fight dust with dust, spreading silver iodide powder to encourage precipitation and end the deadly dust storms plaguing Utah’s capital. …
摘自《新科学家》(New Scientist)第3595期 · 2026年5月16日。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。