The United States is no longer the principal generator of atmospheric carbon, as is now well known. Global warming is indeed that, a global public-policy question, and not one to be handed over to the high priests of climate science. Dr. Happer's scientific skepticism is exactly the right approach for the National Security Council, before the U.S. engages in a lemming-like rush to throw tens of trillions of dollars at the issue.

Rodney L. Burton '62 *66, professor emeritus of aerospace engineering, University of Illinois at Urbana-Champaign
Champaign, Ill.