Consider that nuclear power plants produce 75% as much pollution as a coal-fired plant
It isn't carbon free, but it spews way less carbon during its lifetime than that. Correct me if I'm wrong but I think it takes about the same amount of carbon to mine and transport the fuel, and build the plant (ok, maybe nuclear requires slightly more because the structures are heavier, but still). Coal plants need to be decomissioned too, although granted it takes a much longer period of time to decommission a nuke plant.
It's the same problem with hydrogen. Using hydrogen is all well and good, but there aren't exactly great massive hydrogen deposits sitting underground waiting to be exploited.
Well there are enormous amounts of hydrogen in the atmosphere of Jupiter and (maybe) Saturn, but a more practical short term solution is
this, and I think it shows some promise. It all comes down to our - by which I mean the West - post-industrial consumerist lifestyles. It's kind of nice now, but we're ****ed in a few decades. Like, truly ****ed. Seriously. We're talking nymphomaniac on her wedding night after having just found out she has one week to live ****ed. Live the dream now, because we'll be living a nightmare come 50 years time. And it's we the middle-class that'll be hit hardest.
Western europe was smart enough to invest in large scale, world class intra and inter city public transportation, more efficient private transportation, and (correct me if I'm wrong) but in general relatively high density communities. All of these give Europe a significant amount of lead time to deal with it.
America on the other hand invested in the low density suburban communities that are many miles away from the nearest supermarket and even more miles away from your place of employment, as well as private transportation, a trucking system, and large, wasteful vehicles.
So with that in mind, suburban america will by far be more ****ed than anyone else. Personally I think that in the next 20 years the american suburban lifestyle as we know it will be extinct. Kunstler may very well be right when he predicts the suburbs of America will be the dysfunctional slums of the future.
EDIT: Also something of note: More than half of the American population lives in the suburbs. All of them will be seriously hurt by this. Is this a recipe for disaster or what?