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by h0l0cube 1110 days ago
> olivine coating of beaches promises to be both cheap and effective

The problem with all these novel get-carbon-credits-quick ideas is that they are difficult to verify. How do we know that the outputs aren't taken in by some other ecological process and spat back out as CO2? How do we know the process doesn't reach some saturation point? How do we know how well it generalizes to all coastlines?

... and if we find out 5 years from now that it's bunk, do those carbon credits get revoked?