We already have lots and lots of building stock carbonating right now.
But yes, building has accelerated, so we are not in a steady state.
As an interesting aside, tossing lime into the oceans might help. Ignoring the energy costs, once inside the ocean the lime apparently binds twice as much carbon as was released when making it.
That process also helps against ocean acidification.
So in order for the whole thing to make carbon sense, you'd need to use stranded energy that wouldn't be used for anything else and doesn't release more carbon into the atmosphere, like solar power in a remote desert. And the balance gets even better, if you manage to capture the carbon release by the quicklime making process.
But yes, building has accelerated, so we are not in a steady state.
As an interesting aside, tossing lime into the oceans might help. Ignoring the energy costs, once inside the ocean the lime apparently binds twice as much carbon as was released when making it.
That process also helps against ocean acidification.
So in order for the whole thing to make carbon sense, you'd need to use stranded energy that wouldn't be used for anything else and doesn't release more carbon into the atmosphere, like solar power in a remote desert. And the balance gets even better, if you manage to capture the carbon release by the quicklime making process.
See https://en.wikipedia.org/wiki/Enhanced_weathering and https://en.wikipedia.org/wiki/Iron_fertilization