I hope Andrew Clearfield takes full advantage of being a student at Carnegie Mellon University. He has a lot to learn.
The globe has been getting progressively warmer since the Pleistocene ice age epoch peaked 165 million years ago. Why is anyone surprisedâ¢
Man's contribution to this may be because the world's population has doubled over the past 45 years and all the additional exhaling of CO2 as we work for a living is a factor.
William R. CaseyWest Mifflin

