After another of Dr Allen's talks, I thought that I might have misunderstood his position on carbon capture. But no, it appears that I had it right all along. In his view, we need to start seriously pumping large amounts of CO2 back into geological formations now, in advance of stopping fossil fuels, because that won't happen in time. I absolutely do NOT believe this. Fossil fuel collapse is going to happen much sooner than most expect. I could try to argue that shifting to renewable energy needs to be promoted aggressively, in advance of major amounts of direct air capture, so as to avoid the moral hazard of using CCS to enable continued use of fossil fuels. But I don't even feel like pushing that. It's going to happen, and soon, indeed is happening NOW, even in the absence of major, global, mainly political efforts to accelerate it.