The idea, they say, is that a carbon tax would ultimately lead to fewer harmful, climate-changing emissions because of the higher cost associated with creating them in the first place. The tax would provide an additional incentive to conserve energy.
But climate researcher Paul Knappenberger, in a paper published in November, said even if the U.S. parked every plane, train and automobile, and shuttered every factory, the impact on global carbon emissions would amount to little or nothing - making the imposition of a carbon tax useless .... http://www.naturalnews.com
This is the cause of the Medieval Warm Period
