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Producing Ethanol with "A Dumb Iron" Approach

There has been a flood of stories on two new studies showing that many biofuels are worse for the climate than fossil fuels. That’s because “there are immense amounts of soils and vegetation on the earth, and when you clear them [to grow crops for biofuels], carbon is released,” explained University of Minnesota professor David Tilman, author of one of the studies, to Newsweek. http://www.newsweek.com/id/110636

See also my colleague Adam Aston’s item on this: http://www.businessweek.com/investing/greenbiz/archives/2008/02/bad_news_for_bi.html