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Global warming

485 bytes added, May 22
/* The temperature record */ Since 2015
Global temperatures are tracked by three methods: satellites, weather balloons, and weather stations. All three methods confirm a modest amount of warming in recent decades. Satellite data shows a warming trend of 0.11 K/decade for 1978 to 2015.<ref>Roy W. Spencer, John R. Christy, and William D. Braswell, "[ Version 6.0 of the UAH Temperature Dataset Released]", 28 April 2015.</ref> Weather balloon data shows a warming trend of 0.18 K/decade for 1970 to 2015.<ref>The figure given is for RATPAC-A, surface to 700 mb. See "[ Gavin’s admission about the satellite record versus the surface temperature record]," ''Watt's Up With That''. You can find a collection of global climate charts [ here].</ref>
A reanalysis of weather station data for 1943 to 2012 by Roy Spencer shows that after a cooler period in the 1960s and 1970s, U.S. temperatures returned to their earlier level. Unlike CRU, NASA, and NOAA, Spencer corrects for the fact that at most stations measurement time of day has changed over the years.<ref name=Spencer>Spencer, Roy, "[ A New Analysis of U.S. Temperature Trends Since 1943]," August 6th, 2012.</ref> So Spencer's analysis implies that the warmest year on record was 1934, the warmest year of the 1930s, not 2016 as the climate establishment maintains. Spencer is a prominent skeptic and a professor at the University of Alabama in Huntsville. He maintains the UAH record, one of the two major satellite temperature records. As an active researcher at the center of the climate science community, Spencer is a standing rebuke to the claim that AGW represents the scientific consensus.<ref>Spencer, Roy, "[ My Global Warming Skepticism, for Dummies]"</ref> While the cause is debatable, worldwide, 2016 was the warmest year on record, 2020 was the second-warmest, and 2011–2020 was the warmest decade on record since thermometer-based observations began. Eight of the top 10 warmest years on record for the contiguous 48 states have occurred since 1998, and 2012 and 2016 were the two warmest years on record.<ref>[ US and global temperatures]</ref>
The temperature records preferred by the climate establishment were built up over many years and include numerous gaps, bugs, incompatible coding, and other errors. The problems of the CRU data set are memorably documented in the "Harry read me" file, part of the Climategate trove. According to this file, the premier global temperature record contains, "botch after botch after botch."<ref name=Brownlow>Brownlow, Andie, "[ Climategate's Harry_Read_Me.txt: We All Really Should]", Dec. 11, 2009.</ref>