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> Not an option. Actually, it is an option. Either we can take CO2 out of the atmosphere and put it back underground where it came from; or we could start doin
by semi-extrinsic 10y ago
> Not an option.
Actually, it is an option. Either we can take CO2 out of the atmosphere and put it back underground where it came from; or we could start doing climate engineering to increase the reflectivity of Earth (less sunlight in), using water vapor clouds at low altitude or aerosols at high altitude; or we could put up a big shade in space between us and the sun.
Are those expensive and difficult things? Definitely. But all of them are possible.
- cardamomo 10y agoI guess I was thinking more literally: the Earth does not have large windows we can use to exchange air with the outside environment. Carbon sequestration doesn't remove CO2 from our "spaceship," though it may help.
- mitchty 10y agoWhy would you want to completely remove CO2 from the earth and not sequester it? There is a bunch of useful carbon and oxygen in it that you can at least leave for future humans to use if its sequestered.