People sit on a hilltop near a coal-fired power station on the outskirts of Beijing on November 7, 2008. Hundreds of billions more dollars are likely to be needed to reduce greenhouse-gas emissions by a 2030 target, according to UN estimates published on Friday ahead of global talks on climate change. (AFP/File/Frederic J. Brown)
Hundreds of billions? They are off by at least one order of magnitude and maybe two. Replacing all the world’s fossil plants with nukes will be a tall order. Carbon sequestration won’t work. And wind and solar won’t replace carbon.