Considering the lack of evidence to support the theory of global warming, coupled with the facts that 1) if global warming should occur, it is not carbon dioxide that is the important greenhouse gas anyhow, rather it is water vapor. It is water vapor and clouds that would account for 98 percent of the effect, and 2) carbon dioxide is not an air pollutant. It is produced whenever any kind of organic material is burned or oxidized and, more than that, it is absolutely necessary as a nutrient for all green growing plants. The plant world is the only source of oxygen on which all of us depend to stay alive. Carbon dioxide has a positive benefit for green plants — the more of it that is in the atmosphere, the better they like it. If the amount of carbon dioxide in the atmosphere should double, and this has been done experimentally by controlling the atmospheres in which plants grow, it results in a 30 percent increase in growth and in harvest yield. But the public never hears about this. Well, so much for global warming.