Detractors argue that C02 is just a tiny component of the overall mechanisms that causes the climate to change. Human driven C02 is even less a component. <ref>[http://www.canadafreepress.com/index.php/article/1489], CFP, Medieval Environmentalists’ attack CO2, January21, 2008</ref> | Detractors argue that C02 is just a tiny component of the overall mechanisms that causes the climate to change. Human driven C02 is even less a component. <ref>[http://www.canadafreepress.com/index.php/article/1489], CFP, Medieval Environmentalists’ attack CO2, January21, 2008</ref> |