At some point, we will probably want to actively manage Earth’s climate via space-based solar radiation management. We might also consider doing the same for M

At some point, we will probably want to actively manage Earth’s climate via space-based solar radiation management. We might also consider doing the same for Mars if we ever decide to settle on it. However, we’re going to need to draw down CO2 over the course of this century regardless, and we can probably use stratospheric aerosol injection at a tiny fraction of the cost and for a decade or two if necessary during the process of drawdown. As such, it doesn’t seem like this kind of space-based shelter is justifiable as a response to the warming we are currently dealing with.