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this post was submitted on 19 Dec 2024
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CO is not a significant greenhouse gas. (And N20 is..)
Are diamond particulates likely to burn if they're dispersed in the atmosphere?
Actually yes, if they enter the engine of a plane they will burn.
True. That would be a minescule fraction of what's there though..
Not quite minuscule, for every ton of jet fuel burned, 2 tons of oxygen is needed, to take that in, about 3-4 ton of atmospheric air goes through the combustion, the volume of that air is quite a lot, and is only sustained because oxygen is constantly renewed. The diamonds will not have self sustained renewal and will be burned up pretty quickly.
Also being an aerosol increases surface and potential chemical reactions by a magnitude of maybe a billion per unit, so although we consider diamonds to be very stable in their normal form, a diamond aerosol is obviously much less so, and UV light refracted could accelerate break down of the diamond aerosol, into free carbon, which will create carbon gasses. I bet researchers have considered this, but I see no numbers for it?
I just wonder why not use sapphire dust instead. Doesn't it reflect sunlight almost identically?