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Carbon sequestration is a red herring. It won't keep up with emissions and will waste valuable time reducing emissions, which can be done now. I don't know if you've done the simple energy delta math on most sequestration plans, but a lot of them involve emitting a lot of new carbon.

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Carbon sequestration is a necessity at this point for many emissions scenarios. BECCS (Bio-Energy with Carbon Capture and Storage) seems to be the IPCC's favored technology at the moment. It doesn't have to keep up with emissions, we need to cut emissions to the point that sequestration can bring us carbon negative.

That approach has really serious technical challenges (poor fuel quality and proximity of suitable land to population centers vis a vis the energy necessary to transport it). It's not clear how it's going to scale up to the necessary level.

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