I would go out on a limb and say that producing more CO2 would be good for the planets food production, if as many climate scientists predict; an ice age is looming!
"David Archibald, an eminent climatologist, and others, have pulled the rug out from under the IPCC, by showing that the relationship between CO2 and global temperature is weak and almost non–existent,
He even suggests that we need three times the CO2 concentration in the atmosphere than we have now, to optimize the growth of food crops."
"Now please tell me how anyone can accept the IPCC’s science, which cannot, and does not even attempt to explain, what has happened in the Earth’s history. If they cannot do that, then how on earth can they purport to predict the future?
In fact, they cannot, and until they can the best possible course is to ignore the IPCC completely."