30 Nov '11, 10pm

Carbon debt for some biofuels lasts centuries via @mongabay

Carbon debt for some biofuels lasts centuries Jeremy Hance mongabay.com November 30, 2011 Draining peatland in Indonesian Borneo. Photo by: Rhett A. Butler. It has long been known that biofuels release greenhouse gas emissions through land conversion like deforestation. But an innovative new study by the Center for International Forestry Research (CIFOR) published in Ecology and Society has computed how long it would take popular biofuel crops to payoff the "carbon debt" of land conversion. While there is no easy answer—it depends on the type of land converted and the productivity of the crop—the study did find that in general soy had the shortest carbon debt, though still decades-long, while palm oil grown on peatland had the longest on average. Looking at three different types of biofuels in six countries, the study found that soy grown in parts of Brazil would require 3...

Full article: http://news.mongabay.com/2011/1130-hance_biofuels_debt.html

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