Climate Change Significance 400ppm CO2

Image Courtesy: Juliet Solar

If you were talking levels of mercury contamination of water you drank daily then chances are you would be already be dead or at least you would probably be a vegetable. The FDA approved limit in drinking water is 1ppm. In fact, a level of 400ppm of mercury in your drinking water would cause panic in your neighborhood and a demand for immediate action to locate the source and put a stop to it. In air, if you were talking carbon dioxide, it would mean little to your daily lives in terms of direct affects on your health. The difference is that, unlike mercury, elevated levels of carbon dioxide do not affect us in a way that causes panic . . . unless you happen to be faced with: rising sea levels, warming oceans, melting artic ice, floods, landslides, crop failure, out-migration of traditional food sources, absence of fish due to acidifying of oceans, failed water sources or fewer ski slopes to ski each winter.