Polar bears at play...

...In 2001, Robert Essenhigh, E.G. Bailey Professor of Energy Conservation in Ohio State's Department of Mechanical Engineering speculated that rising global temperatures were naturally increasing the levels of carbon dioxide, not the other way around, and that global warming was a "natural geological process that could begin to reverse itself within 10 to 20 years."

...Here's how Essenhigh sees the global temperature system working: As temperatures rise, the carbon dioxide equilibrium in the water changes, and this releases more carbon dioxide into the atmosphere. According to this scenario, atmospheric carbon dioxide is then an indicator of rising temperatures -- not the driving force behind it.
Essenhigh attributes the current reported rise in global temperatures to a natural cycle of warming and cooling...According to Essenhigh's estimations, Earth may reach a peak in the current temperature profile within the next 10 to 20 years, and then it could begin to cool into a new ice age. Essenhigh knows that his scientific opinion is a minority one. As far as he knows, he's the only person who's linked global warming and carbon dioxide in this particular way...more here...

...In light of the fact that solar activity is the lowest that it has been for a hundred years, an overall cooling planet is to be expected. Whether the good professor's theory is correct is as yet unknown. Time will tell. But the fact remains, that overall, CO2 levels are increasing, and the planet is showing a cooling, not warming trend. None of the IPPC forecasts predicted this persistent cooling yet we are expected to compromise our national economies, our freedom of movement, and pay more for energy use on the basis of IPPC computer modelling...