Thunderf00t has lost the plot here.
He found an amazing hammer a few years ago (combusting Na-K alloy that's been aerosolized through a fuel injector) & now realizes that everything looks like a nail.
But even dismissing the many, non trivial issues with geoengineering, everything is not a nail.
youtube.com
IT WORKS!!!! IT FFFFFING WORKS!!!!! THIS... can counter global warming!
YouTube video by Thunderf00t