[fragmede]

getting the whole world to agree on climate accords didn't work. we blew past the 1 degree allowance we had budgeted for ourselves, so global action together is off the table. What will work, is extraordinary efforts by smaller groups. There's a lot of hard work by tiny groups and individuals to technologies that don't need the whole world to agree to collective action in order to save the planet. The obvious science fiction idea is to put sunglasses between the Earth and the sun, which is a ludicrous idea, because you'd need an insane amount of capability to lift things into space and place them far away from Earth. Once there, you'd just blackmail all the Earth's governments into paying you so the solar panels they rely on will work in order for your venture to be profitable.

[foota]

This isn't far off from their point, albeit without the geoengineering. Reducing the green premium solves the collective action problem.