> If you want to strip out 1 gigatonne of CO2 from the ocean, you probably have to put the upper few meters of the Atlantic through your machines every year
That sounds…drastic! And this seems quite hand-wavy about the risks:
> a lot of environmental monitoring needs to be done to prove that marine carbon-removal strategies aren’t harming aquatic life
It's also "only" a gigatonne, out of around 40 Gt of emissions per year. It's not nothing, but a mediocre year of global economic growth will outweigh it, and outweigh twice the year after. Unless we get our species' electrical generating shit together on a war footing level of effort, which we won't, global GDP will be a proxy measurement for carbon emissions for a good while.
> If you want to strip out 1 gigatonne of CO2 from the ocean, you probably have to put the upper few meters of the Atlantic through your machines every year
That sounds…drastic! And this seems quite hand-wavy about the risks:
> a lot of environmental monitoring needs to be done to prove that marine carbon-removal strategies aren’t harming aquatic life