Global temperatures collected in five official databases confirm that there has been no statistically significant global warming for the past 17 years, according to Dr. John Christy, professor of atmospheric science and director of the Earth System Science Center at the University of Alabama Huntsville (UAH).
Christy’s findings are contrary to predictions made by 73 computer models cited in the United Nation’s latest Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (5AR).
Christy told CNSNews that he analyzed all 73 models used in the 5AR and not one accurately predicted that the Earth’s temperature would remain flat since Oct. 1, 1996. (See Temperatures v Predictions 1976-2013.pdf)
“I compared the models with observations in the key area – the tropics – where the climate models showed a real impact of greenhouse gases,” Christy explained. “I wanted to compare the real world temperatures with the models in a place where the impact would be very clear.” (See Tropical Mid-Troposphere Graph.pdf)
Using datasets of actual temperatures recorded by the NASA Goddard Institute for Space Studies (NASA GISS), the United Kingdom’s Hadley Centre for Climate Prediction and Research at the University of East Anglia (Hadley-CRU), the National Oceanic and Atmospheric Administration (NOAA), satellites measuring atmospheric and deep oceanic temperatures, and a remote sensor system in California, Christy found that “all show a lack of warming over the past 17 years.”
“All 73 models’ predictions were on average three to four times what occurred in the real world,” Christy pointed out. “The closest was a Russian model that predicted a one-degree increase.”