Comment by gault8121

So I am having trouble finding this source now, but I have perviously read from the main team researching Calcium Carbonate, SCoPEx (https://scopexac.com/), that the intention is to spray the calcium carbonate high enough in the atmosphere so that it does not float down to the ground but rather dissipates into space. There is a specific height in the atmosphere where it needs to be released, and yes, if it fell to earth, this wouldn't be a viable solution. I can't find where I read this, but this is one component of the current hypothesis.