Scott "Super" Mandia: "CO2 is plant food? NOT!"

Twitter / AGW_Prof: CO2 is plant food? NOT! - ...

CO2 is plant food? NOT! - Nature News & Comment http://bit.ly/T2qqzD

Carbon dioxide - Wikipedia, the free encyclopedia

Plants require carbon dioxide to conduct photosynthesis. Greenhouses may (if of large size, must) enrich their atmospheres with additional CO2 to sustain and increase plant growth.