...provided it could be implemented on a large enough scale, fast enough, to reduce carbon emissions in a meaningful way. The engineering and funding problems would be enormous, but I believe it could be done.

But the economic power of the fossil fuel industry, plus the political power of the major oil producers would move heaven and earth to keep it from happening. The guys in the white lab coats may find a solution to this problem, but the guys in the gray flannel suits are making too much money off the problem. They will do whatever it takes to stop fixing it.

Remember carcinogens in cigarettes? Remember how they tried to deny AGW in the first place? Remember pesticides, lead poisoning, the ozone hole? These guys don't give a shit about you, Rob. They don't give a shit about anybody.

Now if you can bribe the oil companies and the Saudis and Russians into running the fusion program...maybe. But first you're going to have to convince them they'll make a lot more money out of fusion than out of fossil.