> It. is interesting that you find that a comparison of the two methods is of no relevance
it's not relevant because... it's not relevant. Two very different approaches (reducing solar insolation/increasing albedo through atmospheric seeding vs. carbon capture via remineralization) with very different technical implementations and very different consequences both good and bad.
The only way they are comparable is if your argument is "actions have consequences" in which case sure - medicines also have side effects but we still administer them because the risks usually are worth the benefits.
Maybe a little geoengineering is also worth the risk, given the alternative of doing nothing. (Side note: Even if we were to completely stop CO2 emissions today, we are already past the tipping point by several evaluations. Additional effort beyond reducing emissions is now absolutely necessary.)
>a lot of people believe every quick fix and then when it fails or proves impossible, move on to the next big fix without some investigation into possible catastrophic side effects
This feels like a lot of projection on your part. You came in here with specific claims, and when confronted you don't even acknowledge them and are trying to move on pretending it never happened.
I haven't seen anyone say this is *the* solution, or "the next big thing" as if all previous ideas are invalid, or that there's been no investigation into possible side effects - the article is literally about the investigation.
So to recap:
Your objection is that it might it might make the soil more alkali. My response is the soil is already too acidic, and that they have been adjusting the soil pH using limestone for decades, and that making the soil more alkali is actually a benefit to this strategy. Do you have anything to say regarding your original objection?
Your objection is that silica dust may cause harm to local populations and wildlife. My response is that they acknowledge this risk and are targeting (relatively) low silica basalts which provide the best chemistry for the lowest risk. Do you have anything to say regarding your original objection?
Your objection is acidic rain may cause the carbonates to re-release captured carbon. My response is that the chemical reactions at play explicitly rely on the acidity of the rain to function, so decomposition of the carbonate forms is really only possible if the applied minerals are fully depleted. So the worst case here is the acid rain is neutralized and we end up net zero on carbon? Also, which do you think is worse in terms of acid rain interaction; the basalt minerals, or the limestone they are already using?
Your specific example is sodium carbonate, which you talked about at length. Please explain where the sodium is coming from.
Spare us all the handwaving and man up to the claims you've made.
> Consider if you will, the really big side effect. That attempting to utilize these fixes will permit the petrochemical industry to not only continue as normal, but to increase its emissions
Or not. Nobody not already trying to defend fossil fuels will be comfortable with letting them off the hook. Everyone understands that emission reduction is absolutely necessary, but so is carbon removal at this point.
=Smidge=