One more nail in biodiesel's coffin

"The biodiesel debate is back (did it ever leave?) with a new study which, once more, suggests the green stuff may not be all it's made out to be. Published in Chemistry & Industry, this study suggests diesel fuel made from rapeseed (canola) oil may produce even more greenhouse gas emissions than conventional diesel made from crude oil.

Indeed, the researchers have found that per kilometre driven, biodiesel made from rapeseed emits roughly the same amount of greenhouse gas as conventional diesel."