Once it was that everything was getting hotter and hotter and pretty soon we would be frying eggs by just putting the pan outside. This was to have been because a certain trace gas was invested with magical powers far beyond its proportion. This gas was evil, and certain to incite the wrath of the gods.

It has come to pass that it has not got hotter, but rather stayed the same for the time a newborn becomes an adult. The shamans pondered. They dug in the ice and found from the layers that the evil gas followed temperature everywhere temperature went. Ah, it was not pulling it, it was pushing it. Temperature was copying the gas in advance.

In the end the answer was clear. The bewitched gas also causes cold!