The Big Switch?

Can we maintain a high-energy civilization simply by switching energy sources, from fossil fuels to renewables? These folks don't think so. It's worth a look.

http://www.theoildrum.com/pdf/theoildrum_6641.pdf

http://www.theoildrum.com/pdf/theoildrum_6704.pdf

http://www.theoildrum.com/pdf/theoildrum_6758.pdf