Tag Archives: ethanol

More Indirect Effects from Oil

In the California Air Resources Board (ARB) hearing on the Low Carbon Fuel Standard, the ARB staff insisted that they looked at the indirect carbon effects of oil but couldn’t find any. In a recent post on this blog, I suggested that they should subscribe to National Geographic Magazine. But that isn’t the only news outlet where they could find evidence of indirect effects. This morning’s EE News had links to several stories detailing indirect Read More >

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Don’t Worry, Be Happy

The EPA has released its long-awaited proposed rules for the Renewable Fuel Standard, including calculations of the lifecycle greenhouse gas emissions for various biofuels. Unlike California, the EPA is proposing to “discount” the greenhouse gas emissions of both biofuels and the baseline petroleum gasoline. The discount rate that EPA uses for most of the calculations it presents is 2 percent over 100 years, although it also proposes using a 0 percent discount rate and a Read More >

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A Bad Rule Is Better Than No Rule?

California’s Air Resources Board will vote Thursday on its proposed numbers for the life cycle emissions of various fuels, included under the Low Carbon Fuel Standard. According to a Greenwire story picked up in the New York Times, advocates of the rule believe that it will stimulate investment in advanced biofuels, since according to the staff analysis those biofuels will be preferred for use in California. But start-up advanced biofuel producers are facing considerable economic Read More >

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New Studies Support Cellulosic Ethanol

A team of researchers led by Jason Hill and David Tilman at the University of Minnesota have published an interesting assessment of the health costs of both greenhouse gas and fine particulate matter from corn ethanol, gasoline and cellulosic ethanol. The study is available in the Proceedings of the National Academy of Sciences early release for Feb. 10. The conclusion is favorable to cellulosic ethanol: The benefits of shifting from gasoline and the current generation Read More >

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Biofuels and Irreversible Climate Change

Last week, the paper Irreversible climate change because of carbon dioxide emissions was published in the early edition of the Proceedings of the National Academy of Sciences. The article received coverage on the airwaves, blogosphere, and in the traditional media. Susan Solomon, the lead author on the paper was interviewed by NPR, “We’re used to thinking about pollution problems as things that we can fix,” Solomon says. “Smog, we just cut back and everything will Read More >

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