How can you take 'greenies' seriously when they define what we ALL breathe out is a pollutant? How are soft drink companies ALLOWED to put that pollutant into my drink? Get rid of that pollutant and then all the plants die too. Greenies want to be the 'controllers' because of a mental defect. After all, they KNOW better than anyone else because they were taught that at taxpayer funded institutions. Are we even certain that CO2 is a cause and not a _result_ of warming? And why did the ice age end 10,000 years ago WITHOUT global warming - with no fossil fuels and few people?