[throwaway0a5e]

>Where do you store it?

Someone creates some magical building material that is high in carbon, non-reactive (or at least doesn't leach carbon into the air), economically viable and is mostly recyclable.

Imagine something along the lines of synthetic high carbon asphalt or masonry products.

[Retric]

A lot of CO2 has been released.

10 Trillion metric tons / 7.8 billion people ~= 1,300 tons per person which is well beyond the amount of building materials used.

[TeMPOraL]

Yup, but the point is that with such magic building material, we could not only build buildings and facilities with it, we could just pile heaps of it above ground for the purpose of only sequestering carbon.

[bryanlarsen]

That's about 130 trees or 13 houses. Yes, that's well beyond the amount of building materials used, but not unimaginatively so.

[lostapathy]

How much pavement exists per-capita? I'm sure that would lower the multiplier a lot too.

[bryanlarsen]

In case anybody missed the subtlety here, I assume that throwaway0a5e is talking about wood and similar products such as bamboo.