Global Warming
Dec 6th 2007David ShaferEnergy & Environment & Legislative Process
Today I co-chaired a hearing on global warming at the State Capitol. The idea for the hearing originated with Senator Ross Tolleson, who chairs the Senate Natural Resources and Environment Committee. He asked me to join him because I am the chairman of the Senate Regulated Industries and Utilities Committee, which deals with energy issues.
As I said at the hearing, glaciers once covered most of North America. They have steadily receded over the last several thousand years as the world has grown warmer, and most of that warming has had nothing to do with human activity. In fact, it is pretty clear that the temperature of the sun, which rises and falls in cycles, is the driving natural phenomenon.
As to whether human activity has accelerated the warming in the last hundred years, it seems logical that we have had some impact. The controversy arises in determining the extent of that impact and what should be done about it.
Senator Tolleson arranged for us to hear from two witnesses. Martin Rickerd, the British consul general, discussed his country’s efforts to reduce greenhouse gas emissions, including incentives and penalties on energy-intensive businesses and on automobile owners. Dr. Harold Brown, professor emeritus from the University of Georgia, urged caution, saying that the human impact on climate is difficult to ascertain. He also pointed out that climate experts were predicting a new Ice Age as late as the 1970s and demanding government action to “warm up” the planet.
More hearings are planned. Global warming was an issue at the National Conference of State Legislatures meeting in Boston last summer.