In a gold-trimmed command center on the outskirts of Abu Dhabi, scientists are seeking to wring moisture from desert skies. But will all their extravagant cloud-seeding tech—planes that sprinkle nanomaterials, lasers that scramble the atmosphere—really work at scale?
More than 50 countries have dabbled in cloud seeding since the 1940s—to slake droughts, refill hydroelectric reservoirs, keep ski slopes snowy, or even use as a weapon of war. In recent years there’s been a new surge of interest, partly due to scientific breakthroughs, but also because arid countries are facing down the early impacts of climate change.
The UAE has invested millions in developing new technologies for enhancing rainfall—and surprisingly little in actually verifying the impact of the seeding it’s doing right now. After initial feasibility work in the early 2000s, the next long-term analysis of the program’s effectiveness didn’t come until 2021. It found a 23 percent increase in annual rainfall in seeded areas, as compared with historical averages, but cautioned that “anomalies associated with climate variability” might affect this figure in unforeseen ways.
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