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I think a key issue you highlight is the relationship between regulations and technology.

From Brad Plumer comes a graph of patent filings for sulfur dioxide-control technologies for electric power plants.

So it is with car design and manufacture. It is possible to get this kind of jump using fuel taxes, but the level of fuel taxes required is very high and certainly more economically (not to mention politically) damaging than just making a regulatory limit on new Car CO2 emissions.

by Metatone (metatone [a|t] gmail (dot) com) on Sun Dec 23rd, 2007 at 12:01:26 PM EST
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That's a pretty amazing graph. Thanks.
by nanne (zwaerdenmaecker@gmail.com) on Mon Dec 24th, 2007 at 05:00:41 AM EST
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