"A new study suggests that the University of Alabama at Huntsville is lowballing the warming of the atmosphere".
"A very important study was just published in the Journal of Climate a few days ago. This paper, in my mind, makes a major step toward reconciling differences in satellite temperature records of the mid-troposphere region. As before, it is found that the scientists (and politicians) who have cast doubt on global warming in the past are shown to be outliers because of bias in their results.
The publication, authored by Stephen Po-Chedley and colleagues from the University of Washington, discusses some major sources of error in satellite records. For instance, after satellites are launched, they scan the Earth’s atmosphere and calibrate the atmospheric measurements using a warm target onboard the satellite and cold space. The accuracy with which the atmospheric measurements are calibrated can influence the inferred temperature of the atmosphere (called the warm-target bias). Additionally, over the years, multiple satellites have been launched and the selection of which satellite data are used can play a role. Finally, biases can occur because the satellite orbits drift during their lifetime and the influence of diurnal temperature variation can affect the global temperature trends.
Of these three errors, the last one (probably the most important one), was the focus of the just-published paper."
John Abraham reports for the Guardian March 25, 2015.
SEE ALSO:
"Feisty Ala. Climate Change Critic Claims Washington Is Trying To Intimidate Him " (ClimateWire)
"Though Scorned by Colleagues, a Climate-Change Skeptic Is Unbowed" (New York Times: 7/15/2014)
"McNider and Christy Style Themselves Revolutionary But Defend Inertia" (Climate Science Watch)
"Quoting John Christy On Climate Change Is Like Quoting Dick Cheney On Iraq" (Climate Progress)
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