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Article: Water vapor may be biggest contributor to higher global temperatures, researcher says
- Article from:
- AP Worldstream
- Article date:
- November 9, 2005
- Author:
CopyrightProvided by ProQuest LLC. (Hide copyright information)
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BRADLEY S. KLAPPER, Associated Press Writer
AP Worldstream
11-09-2005
Dateline: GENEVA
An unexpected greenhouse gas _ water vapor _ may be the biggest factor contributing to higher global air temperatures, a Swiss researcher said Wednesday.
Other greenhouse gases heat the ground, which causes more water evaporation that in turn further increases ground and then air temperatures, said Rolf Philipona of the World Radiation Center in Davos, Switzerland.
"Water vapor is a greenhouse gas," said Philipona. "Wherever you have an increase in water vapor, you have an increase in temperature."
A study led by Philipona found that temperatures in the Alps increased by 1.3 to 1.4 degrees Celsius since ...