This is a solution for climate change that's been tossed around for a while in various forms.

I think it may just be one of the most viable thanks to SpaceX bringing down the cost of space launch. With starship this might just be one of the cheapest solutions. Certainty cheaper than building seawalls around all our coastal cities - something that no reduction in emissions will save us from now.

To be clear, we have to reduce emissions, but it's obvious now to me that it will be too little, too late. We'll need something more radical as well. Currently emissions are still increasing and the rate of emissions is even accelerating still. We're pretty fucked overa long time span.