Tag Archives: lifecycle analysis

Best Available Science?

Yesterday, the Scientific Committee on Problems of the Environment (SCOPE) released a report, “Biofuels: Environmental Consequences and Interactions with Changing Land Use,” based on the proceedings of its International Biofuels Project Rapid Assessment. The Environmental Working Group immediately praised the report, claiming that it “confirms that corn-based ethanol is a dead end.” (I recommend reading this response to EWG by Biofuels Digest’s Jim Lane.) Far from that confirmation, the report’s recommendations recognize that whether the Read More >

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California Proposes Numbers for Indirect Land Use Change Emissions

California issued a staff report last week for its “Proposed Regulation to Implement the Low Carbon Fuel Standard.” As expected, the rule proposes a measure of indirect land use change emissions for select biofuels – corn and sugarcane ethanol and soy biodiesel. The report defines the assumptions behind the analysis – in a word, that use of existing crops for biofuels reduces supplies, increases prices, and thereby induces agricultural expansion: Land use change effects occur 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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Comparing Energy Sources

Stanford University Professor Mark Z. Jacobson recently published a new paper in the journal Energy & Environmental Science, “Review of solutions to global warming, air pollution, and energy security.” According to Stanford News Writer Louis Bergeron, Jacobson has conducted the first quantitative, scientific evaluation of the proposed, major, energy-related solutions by assessing not only their potential for delivering energy for electricity and vehicles, but also their impacts on global warming, human health, energy security, water Read More >

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Europe to Study Indirect Land Use

The European Parliament on Dec. 17 adopted amendments to the Renewable Energy Sources Directive, raising targets for production of biofuels but at the same time setting strict sustainability standards to monitor and reduce greenhouse gas emissions from the use of road transport fuels. The Parliament’s adopted text makes clear that it intends to calculate climate change emissions from international land use, but that the science is not currently available to do so: Whereas (11) In Read More >

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