> The use of CO2 that is sourced from the atmosphere is better from an environmental perspective than the use of CO2 sourced from offshoots of an ethanol plant.
I thought that most ethanol is made from fermentation of corn, sugar, or whatever, and the carbon in that process came from the atmosphere originally. So, environmentally whether you make CO2 as a byproduct of ethanol production from CO2-absorbing crops or you extract CO2 straight from the air, it seems essentially the same because in both cases the carbon came from the atmosphere originally. What am I missing?
I thought that most ethanol is made from fermentation of corn, sugar, or whatever, and the carbon in that process came from the atmosphere originally. So, environmentally whether you make CO2 as a byproduct of ethanol production from CO2-absorbing crops or you extract CO2 straight from the air, it seems essentially the same because in both cases the carbon came from the atmosphere originally. What am I missing?