Everybody knows the global politics of climate change are leading nowhere. If the futile UN-sponsored talks illustrates one thing, it is that no country is willing to make economic sacrifices to reduce its carbon emissions. Roger Pielke Jr. calls this the iron law of climate policy. It’s proving ironclad. That essentially leaves us with one option: Getting off fossil fuels altogether. Right now, such a prospect is not looking good. We seem to be flush with oil and gas these days--and the foreseeable future. That puts us on a collision course with climate disaster. So what do we do? There are two camps that claim to have the answer. One of them believes that nuclear power is the only viable substitute for coal, which remains cheap, plentiful and the primary greenhouse gas responsible for cooking the planet. The other camp believes that renewable energy puts us on a true path to a sustainable planet. Which of these camps offers the best way to kick our carbon addiction? That's the subject of a new piece I have up at Slate.