Emissions Impact of Biofuels Undercounted

"In recent months, researchers have begun to worry that bioenergy crops could replace the world's forests and savannahs on a huge scale unless climate policies start to take full account of how these crops' production affects greenhouse-gas concentrations. None of the major climate regimes -- including the Kyoto Protocol, the European Union's carbon market and the House-passed climate bill -- account for the carbon released by changing land use for biofuels."