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Power Paradox: Clean Might Not Be Green Forever
from New Scientist
"A better, richer and happier life for all our citizens." That's the American dream. In practice, it means living in a spacious, air-conditioned house, owning a car or three and maybe a boat or a holiday home, not to mention flying off to exotic destinations.
The trouble with this lifestyle is that it consumes a lot of power. If everyone in the world started living like wealthy Americans, we'd need to generate more than 10 times as much energy each year. And if, in a century or three, we all expect to be looked after by an army of robots and zoom up into space on holidays, we are going to need a vast amount more. Where are we going to get so much power from?
It is clear that continuing to rely on fossil fuels will have catastrophic results, because of the dramatic warming effect of carbon dioxide. But alternative power sources will affect the climate too. For now, the climatic effects of "clean energy" sources are trivial compared with those that spew out greenhouse gases, but if we keep on using ever more power over the coming centuries, they will become ever more significant.
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