No, it won't be problem solved. We have already kickstarted positive feedback loops like thawing of the tundra, reduced albedo due to smaller ice sheets, ... .

No, it won't be problem solved. We have already kickstarted positive feedback loops like thawing of the tundra, reduced albedo due to smaller ice sheets, ... . We actually need to go carbon negative for a while to offset those. The technology you mention surely will help greatly in avoiding speeding things up, but they won't take us back to preindustrial levels alone.