Nobel Prize winner Al Gore this week called for the United States to move all electricity production to a zero carbon-emissions energy base within 10 years.

This is not only a bold statement. It is also quite ingenious, in at least three dimensions: selection of target, legislative and regulatory implications, financial possibilities. Although I have communicated with Al on this topic, he hasn't authorized what I'm posting here; this is my thinking about the corollaries of his very important statement.

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