On their page, they say: "When the carbon dioxide concentration goes up, temperature goes up. When the carbon dioxide concentration goes down, temperature goes down. A small part of the correspondence is due to the relationship between temperature and the solubility of carbon dioxide in the surface ocean, but the majority of the correspondence is consistent with a feedback between carbon dioxide and climate." Don't believe me, click on the link above to their site.
They would have us believe that all of these warming points, indicated by red arrows, are warming rapidly while melting ice volume rapidly and all these cooling points, indicated by blue arrows, are cooling rapidly while building ice volume and it is mainly because of what is going to happen to CO2. The CO2 change did not actually happen yet because they tell us that the CO2 change that is driving is actually lagging the temperature change.
They have no reasonable explanation for where they get the difference in energy that would be required to melt massive ice sheets while warming the earth at the same time as compared to the energy level that cooled the earth while building ice volume. They did not say it here, but they like to say that some of the heat comes from orbit changes and earth tilt changes but that is still small changes to the energy available.
Their Theory on how they get the energy differences to build and take away ice volume makes no sense at all.