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this post was submitted on 09 Jul 2024
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The comparison I most often see is that marine cloud brightening could potentially offset the loss of the aerosol masking effect from sea shipping companies cutting sulfur from their fuels. The aerosol masking effect is estimated to be somewhere between 0.5–1⁰ C which is now being realized. So Marine cloud brightening could, potentially at an astronomical scale, could offset that. Or we could put sulfur back in the fuels I guess lol
and then keep ramping it up so that we can continue burning fossil fuels until we're masking 2-3 c in warming and then there's an economic slowdown and we can't keep up the geoengineering and suddenly it's mask off on however many extra decades of warming got baked in meanwhile
the research is good, but geoengineering initiatives under capitalism are a death sentence