New studies add to doubts over biofuels

Greenhouse gas emissions from land use changes could dwarf savings offered by first generation biofuels, US analysis concludes

Further evidence has emerged on the potentially damaging environmental effects of promoting biofuel consumption. Studies published on Friday in the journal Science recommend that waste biomass and biomass grown on abandoned farmland be prioritised for biofuel production.

One study, by the US Nature Conservancy, found that converting rainforests, peatlands, savannas or grasslands to produce biofuels in Brazil, southeast Asia and the US releases up to 420 times more carbon dioxide than the carbon reductions these biofuels provide.

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