Who Liked CO2?

In recent times there have been many who rage against the production of CO2. I find that a curious (And ignorant) objection,

After all, plants require that gas to grow and produce the present high production of food stuffs which  CO2 may be basic to the lack of major famines in our time.

After all, that CO2 produced by internal combustion engines allows the distribution of food as also has brought the risk of general famines to almost zero.