Actually it is tax neutral, not carbon neutral. The kicker here is (i cant find the source anymore) at least in Germany agriculture is energy intensive. It seems one energy unit of crop need one energie unit of (tax excempted) fossil fuel (for the machineries).
So basically you are pumping fuel into a black box, and out comes bioful (which has tax breaks as well, if I remember correctly)
So basically you are pumping fuel into a black box, and out comes bioful (which has tax breaks as well, if I remember correctly)
It is a left picket right pocket game.