It's the CO2 equivalent of the two economists eat shit joke.

> You could also phrase this as 'global GDP would triple from this initiative'

No, you couldn’t, not in real terms.

Let’s suppose a government diverted 2x GDP to this proposal. It can’t tax 200% of output—it must print money. G goes to 2x prior-year GDP. Pretty much immediately, every other component collapses to zero (besides expectations, the government is basically seizing all base metals production and transportation and labor) amidst hyperinflation. Which makes your real G, and GDP, lower than before.

Alternatively, everybody might starve to death because there are real physical bottlenecks on GDP.

It doesn't matter how much money you print, someone can't be in two places at once, growing food and working in the carbon capture factory