The only way Obama could understand the Constitution and Bill of Rights would be if it was written in Eubonics. On the serious side. CO2 is 1.5 time heavier than Oxygen and Nitrogen, so CO2 seeks the lowest ground level possible. IT is NOT in the upper atmosphere, it does not contribute to Global Warming. All growing plants absorb CO2 to grow. Trees convert CO2 to Oxygen. and consume the carbon to form CarboHydrates CH. Study chemistry and learn about the scam Al Gore is feeding us. Learn to know what you vote for and whom you vote for. Or we have lost this nation. the CIA is great at killing undesirables where is the CIA when you really need them?