Can renewable forms of energy replace fossil fuels?
Well, remember, efficiency comes first. So we quit the waste. As soon as you quit the waste, then your energy demand drops in the rich countries and flatlines in the developing countries. That's a manageable problem. If you have dropping energy demand, you can make carbon drop even faster by a steady substitution of renewable fuels.
If you have flat energy demand, which they would in China, for example, then you can start chewing away at that with new renewables. But you've bought yourself the time to introduce those renewable on a mass scale. It's no longer a panic situation.
