SANTA FE, N.M. - Former astronaut Harrison Schmitt, who walked on the moon and once served New Mexico in the U.S. Senate, doesn’t believe that humans are causing global warming.
"I don’t think the human effect is significant compared to the natural effect," said Schmitt, who is among 70 skeptics scheduled to speak next month at the International Conference on Climate Change in New York.
Harrison Schmitt was one of the last astronaut to walk on the moon from the Apollo 17 mission. He has a science degree from the California Institute of Technology. He also studied geology at the University of Oslo in Norway and took a doctorate in geology from Harvard University in 1964. I know he isn't a atmospheric scientist but being a geologist he has studied the "Geologic records" connected to climate change.
“Not that the planet hasn’t warmed. We know it has or we’d all still be in the Ice Age,” he said. “But it has not reached a crisis proportion and, even among us skeptics, there’s disagreement about how much man has been responsible for that warming.”
Schmitt said historical documents indicate average temperatures have risen by 1 degree per century since around 1400 A.D., and the rise in carbon dioxide is because of the temperature rise.
Schmitt also said geological evidence indicates changes in sea level have been going on for thousands of years. He said smaller changes are related to changes in the elevation of land masses -- for example, the Great Lakes are rising because the earth’s crust is rebounding from being depressed by glaciers.
From Boston Herald here.
From Cave News here.