It just sounds good, more carbon dioxide will mean more plant growth. CO2 is a kind of plant food, right? It'll mean more wheat, corn, rice, per acre. Unfortunately not. A new study shows that more carbon dioxide reduces the plant's ability to process nitrogen. This is very unfortunate because we are forecast to have to have enough food every day to feed 8 billion people by 2050. Mass starvation is in our future unless we figure out how to do that. And as I've posted before, the anti-GMO people are not helping.