Here's an example even Ckone can understand that helps explain Glogal warming and why thigs might get cooler as the earth heats up.

Take a glass of luke warm water, say 84 degrees farenheit, drop in two large ice cubes and stir.

Does the water grow colder or warmer? Now set the water on a gas burner. what happens?

Consider the oceans to be our glass of water, then start melting the polar caps, like we have been for the last 20 years or so, and the water, and our climate gets colder for a short period of time, but as we continue to add heat to the surface, it will eventually start to get hot again. Just wait and see. When the coastlines start to disappear, watch the republicons go with them.