i think there may have been some confusion about the parent comment

you are both agreeing that where the fuels come from matters. If you want to burn fossil fuels in a manner to keep atmospheric carbon neutral using the approach specified in

> Why would growing corn for ethanol and burning it in an engine be any climate-friendlier than growing that same corn for food and burning an equivalent amount of gasoline in an engine?

then the correct approach would be

> Why would growing corn for ethanol and burning it in an engine be any climate-friendlier than growing that same corn for *burying in the ground* and burning an equivalent amount of gasoline in an engine?

unless i am misunderstanding these two comments? some clarity would be great!