Yedvab: Background stratospheric levels make small-scale sulfate testing impossible
Yanai Yedvab · Inside the most sophisticated plan for solar geoengineering · Jul 1, 2026 · at 13:08
Yanai Yedvab, CEO of solar geoengineering startup Stardust, explains technical limitations of traditional sulfate geoengineering compared to novel engineered particles.
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“One of the problems with sulfates, apart from what we've been discussing, is the fact that you cannot do testing at small scale of sulfates. And the reason for this, since this is something sometimes people overlook, is the very high background that you have currently at the stratosphere, you have like few 100,000 tons of sulfates and it's fluctuating, which means if you think about it for a second, that the smallest scale experiment you can do is more or less one million ton, which is not an experiment, it's deployment, right?”
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