What if someone told you that 100 percent of the world’s energy could come from renewable fuels in just 20 to 40 years* using existing technology …
… And that the annual costs of powering our cars and homes with wind, water, solar and hydrogen would be little more than what using conventional fuels costs today?
No way, you say? Well then say it to Stanford University’s Mark Z. Jacobson and his colleague Mark A. Delucchi, from the University of California, Davis, who havecrunched the numbers. To get the details, you can read their papers (which are currently in press at the journal Energy Policy) here [pdf] and here [pdf].
Meanwhile, here’s a summary of their numbers.
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