A controversial theory proposes mimicking volcanoes to fight global warming [1]. But throwing sulfur particles into the sky may do more harm than good, a new study says.
The temporary solution would pump particles of sulfur high into the atmosphere—simulating the effect of a massive volcano by blocking out some of the sun's rays.
This intervention, advocates argue, would buy a little time to reduce greenhouse gas emissions. But as well as cooling the planet, the sulfur particles would reduce rainfall and cause serious global drought [2], a new study says.
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