Regardless of the method, carbon capture is not going to work fast enough to make meaningfully change. The only realistic solution to keep earth from going runaway warming and becoming perhaps even another Venus, is to radically increase earth’s albedo to a point where the energy balans goes from +2W/m² to -2W/m², using brightening agents like sea salt for instance. In the mean time more realistic methods to manage CO2 en especially also methane levels in the atmosphere can be devised for the longer term.