Ofc it's impractical at a political level, but from a logical perspective it's a lot safer for the existing population and more reliable a solution than a megap

Ofc it's impractical at a political level, but from a logical perspective it's a lot safer for the existing population and more reliable a solution than a megaproject (ie "giant sun shade") which won't limit carbon at all leaving humanity on a longer tail ride to the same situation alongside the dangers of a megaproject failure.