Prehistoric SUV's?

Scientists have discovered irrefutable proof that Antarctica was once at least 30 degrees warmer than it is today.

Marchant estimated that the summer temperatures in Antarctica would have been about 30.6 degrees F (17 degrees C) warmer than they are now.

This warmer period started to end when the first continent-sized ice sheets began appearing on Antarctica around 34 million years ago, around the end of the Eocene epoch. These ice sheets expanded and contracted until around 14 million years ago, during the Miocene epoch, when a dramatic cooling took place and transformed the tundra into an environment "that today looks like Mars," Marchant told LiveScience.

Marchant said climatologists are uncertain exactly what caused this intense period of cooling.

Clearly, it was prehistoric carbon taxes.