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Comment by cjbenedikt

9 hours ago

You can actually capture CO2 from sea water thereby reducing ocean acidification and improving its capability to continue as our planets biggest CO2 sink.

there's also lots of water to wash then.

The problem is the same, the relative concentration of oxygen in air is less than 0.05% (~450pars per million). In water much less.

Well here's the thing - there's quite a lot of water out there too.

How long and how many terawatts of power do you think it'll take to suck a significant fraction of the earth's seawater through a capture facility?

  • You're right, it's expensive and hard, so it's better to not do anything and... migrate all humanity onto space stations so we don't die with the earth, I guess is the alternative you're suggesting?

    • It's not expensive and hard, it's impossible. The largest carbon capture facility in the world is called mammoth, and in order to offset our current emissions we would need a million of them. We can not build a million of them.

      This is why climate scientists have been saying for a hundred years that we need to stop producing all this CO2, because we can't take it back. We can't just fix it. We can't just get back all the ice that's melted and keeps melting, we can't unthaw the permafrost. We can't stop all the methane and other climate gases that have been trapped under ice for millions of years from being released and making it even worse. We just can not do it.

      We were warned, we ignored the warnings and now we're seeing the consequences.