Not wanting to start a big debate or thread hijack but here goes;
(The CO2 that's absorbed by the plant is then returned to the Atmo' from whence it came so there is a neutral balance.) Is not totally the case. There is always fuel burned in the manufacturing and distribution process. Maybe if the entire process including the distribution is done using "Biofuel" then there is a net saving as there would otherwise be fossil fuel burnt in distributing the fossil fuel in the first place.
I'll stop before I start running on,,,,,,,,,,
So if we do more driving about because of the neutral impact of the biofuel (If it was 100% Bio) but the stuff is distributed and manufactured using non bio, then we get a positive impact.
I said I wouldn't do that.