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.» (cnsnews.com)
That trick involved obfuscating the results of proxy temperature data when it didn't match actual temperatures recorded by instrumentation. (globalclimatescam.com)
In fact, this was in small part how the whole global warming hoax was «confirmed» by casting a shadow on the actual temperature records. (wattsupwiththat.com)