Not necessarily. There are so many cases (even in industrialized countries) of former bog areas turned into farmland by lowering the water level that a biogas p

Not necessarily. There are so many cases (even in industrialized countries) of former bog areas turned into farmland by lowering the water level that a biogas plant from corn grown on such ground produces 8 times the CO_2 a lignite plant would have per MW. Just by steady degradation of peat in the ground of the fields.