8. Understandably, the developing world is far more concerned about its present standard of living than it is about global warming. For that reason, increases in the rate of CO2 release to the atmosphere are now due entirely to activities in the developing world. U.S. emissions of CO2 have been declining, due largely to the availability of inexpensive natural gas. In 2012, U.S. emissions had returned to the levels that existed in 1994.
Global warming is an important subject and it deserves a careful treatment. I hope that this letter has contributed to that goal.
Kenneth A. Smith