N2O released from biofeuls production can do more damage than CO2

Please follow the link to the paper:

http://www.atmos-chem-phys-discuss.net/7/1...11191-2007.html

also at:

http://www.physorg.com/news109581631.html

I quote,"the production of commonly used biofuels, such as biodiesel from rapeseed and bioethanol from corn (maize), can contribute as much or more to global warming by N2O emissions than cooling by fossil fuel savings."