Q&A: Bill Gates on the World’s Energy Crisis
There’s certainly lots of room for increasing efficiency. But can we, by increasing efficiency, deal with our climate problem? The answer is basically no. The climate problem requires more than a 90 percent reduction in CO2 emitted, and no amount of efficiency improvement is going to address that. As we’re improving our efficiency, poor people are increasing their energy intensity. You’re never going to get the amount of CO2 emitted to go down unless you deal with the one magic metric, which is CO2 per kilowatt-hour. http://www.wired.com/magazine/2011/06/mf_qagates/
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