Paul Krugman on ethanol

This is from the New YOrk times via http://economistsview.typepad.com/economistsview/2007/01/paul_krugman_th_1.html.
Krugman mentions the lack of net energy production and also the contrast with Brazil that produces ethanol from sugar cane. No one mentions corn as food production as Castro does. Of course Krugman is not voted into office and so does not run in Iowa either.




The Sum of All Ears, by Paul Krugman, Corn Cop-Out, Commentary, NY Times: For those hoping for real action on global warming and energy policy, the State of the Union address was a downer. There had been hints and hopes that the speech would be a Nixon-goes-to-China moment, with President Bush turning conservationist. But it ended up being more of a Nixon-bombs-Cambodia moment.

Too bad... The only real substance was Mr. Bush’s call for ... ethanol to replace gasoline. Unfortunately, that’s a really bad idea. There is a place for ethanol in the world’s energy future — but that place is in the tropics. Brazil has managed to replace a lot of its gasoline consumption with ethanol. But Brazil’s ethanol comes from sugar cane.

In the United States, ethanol comes overwhelmingly from corn, a much less suitable raw material. In fact, ... researchers ... estimate that converting the entire U.S. corn crop — the sum of all our ears — into ethanol would replace only 12 percent of our gasoline consumption.

Still, doesn’t every little bit help? Well, this little bit would come at a very high price compared with ... conservation. The Congressional Budget Office estimates that reducing gasoline consumption 10 percent through ... fuel economy standards would cost ... about $3.6 billion a year. Achieving the same result by expanding ethanol production would cost taxpayers at least $10 billion a year...

What’s more, ethanol production has hidden costs. ...[T]he Department of Energy ... says that the net energy savings from replacing a gallon of gasoline with ethanol are only ... about a quarter of a gallon, because of the energy used to grow corn, transport it, run ethanol plants, and so on. And these energy inputs come almost entirely from fossil fuels, so it’s not clear ... ethanol does anything to reduce carbon dioxide emissions.

So why is ethanol, not conservation, the centerpiece of the administration’s energy policy? Actually, it’s not entirely Mr. Bush’s fault.

To be sure, ... Mr. Bush’s people seem less concerned with devising good policy than with finding something, anything, for the president to talk about that doesn’t end with the letter “q.” And the malign influence of Dick “Sign of Personal Virtue” Cheney, who no doubt still sneers at conservation, continues to hang over everything.

But even after the Bushies are gone, bad energy policy ideas will have powerful constituencies... Subsidizing ethanol benefits two well-organized groups: corn growers and ethanol producers (especially the corporate giant Archer Daniels Midland). As a result, it’s bad policy with bipartisan support. For example, earlier this month legislation calling for a huge increase in ethanol use was introduced by five senators, of whom four, including ... Barack Obama and Joseph Biden, were Democrats. In a recent town meeting in Iowa, Hillary Clinton managed to mention ethanol twice...

Meanwhile, conservation doesn’t have anything like the same natural political mojo. Where’s the organized, powerful constituency for tougher fuel economy standards, a higher gasoline tax, or a cap-and-trade system on carbon dioxide emissions?

Can anything be done to promote good energy policy? Public education is a necessary first step, which is why Al Gore deserves all the praise he’s getting. It would also help to have a president who gets scientific advice from scientists, not oil company executives and novelists.

But there’s still a huge gap between what obviously should be done and what seems politically possible. And I don’t know how to close that gap.

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