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Scientists advise EU to halt solar geoengineering
Calls for a moratorium on efforts to artificially cool Earth are growing.
The tactic that’s gained the most attention so far involves mimicking the way volcanic eruptions temporarily cool the planet by spewing sulfur dioxide into the stratosphere, producing a reflective haze. But using sulfur dioxide can also be considered a pollutant that might irritate people’s lungs, lead to acid rain, and potentially rip open the Antarctic ozone hole. Harvard recently canceled plans to conduct an outdoor test flight in Sweden after facing opposition from Indigenous Saami leaders who said they weren’t consulted about the experiment.
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