It is an interesting solution especially if we have to stop an positive feedback of CH4 but so far, only one team has modeled this kind of stratospheric albedo modification, and with few inputs.

But this solution will make the planet, a drug addict, if we implement it without drastically reducing the causes of the problems.Any interruption (war/economic/politic whatever) of the process would lead to a catastrophic increase in temperature (specially if we continue to improve our technology an therefore reducing the solar dimming).