There's no mention of how the figure for Biofuel is arrived at so I'm not sure that I can agree with it (the idea that arable land is spent on biofuel, thus dri

There's no mention of how the figure for Biofuel is arrived at so I'm not sure that I can agree with it (the idea that arable land is spent on biofuel, thus driving up food prices was doing the round a while ago). With that possible exception, my opinion is that all four are pretty dangerous. It seems they are all at least twice as dangerous as Natural gas. I disagree that it looks really safe compared to the others. I agree that it is grotesque to use current events to support related agendas.