> The biggest problem isn't even the greenhouse emissions but the way we are destroying the living topsoil by our methods and then trying to fix the problem wit

> The biggest problem isn't even the greenhouse emissions but the way we are destroying the living topsoil by our methods and then trying to fix the problem with fossil fuel based systems - diesel based tilling and fertilisers. You're talking about ammonia. This is currently irreplaceable in terms of scaling, certainly it would be impossible to feed 8 billion people without. Just look at how much more land-use "organic" plots require. There are innovations in the works to synthesize ammonia without fossil fuels, but I don't see a future without fertilizer.