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temperature
Radiosonde (weather balloon) and satellite data shows that the lower troposphere warmed by 0.44 degrees Celsius between 1979 and 2014. This corresponds to a rate of 1.7 degrees per century. If the AGW theory was correct, the lower troposphere would be warming at a rate of 3.1 degrees per century, according to an average of 102 climate models used by the Intergovernmental Panel on Climate Change (IPCC).<ref>"[https://www.newcriterion.com//cm/images/THE%20CLIMATE%20SURPRISE%20PAMPHLET.pdf The Climate Surprise Pamphet]", ''The New Criterion'', 2016. Taken from chart "All 3 Global Temperature Dataset Types Disagree with the Climate Model During the Period of Greatest Greenhouse Concentration."</ref>
Radiosonde (weather balloon) and satellite data shows that the lower troposphere warmed by 0.44 degrees Celsius between 1979 and 2014. This corresponds to a rate of 1.7 degrees per century. If the AGW theory was correct, the lower troposphere would be warming at a rate of 3.1 degrees per century, according to an average of 102 climate models used by the Intergovernmental Panel on Climate Change (IPCC).<ref>"[https://www.newcriterion.com//cm/images/THE%20CLIMATE%20SURPRISE%20PAMPHLET.pdf The Climate Surprise Pamphet]", ''The New Criterion'', 2016. Taken from chart "All 3 Global Temperature Dataset Types Disagree with the Climate Model During the Period of Greatest Greenhouse Concentration."</ref>
Radiosonde and satellite data are the most accurate sources for global temperature, but they do not go back far enough to establish a relevant trend. A reanalysis of weather station data for 1943 to 2012 by U.S. climate researcher Roy Spencer shows that after a cooler period in the 1960s and 1970s, U.S. temperatures returned to their earlier level. Unlike official temperature records, Spencer's data includes only those stations that record temperature at a consistent time of day.<ref name="Spencer" />
Radiosonde and satellite data are the most accurate sources for global temperature, but they do not go back far enough to establish a relevant trend. A reanalysis of weather station data for 1943 to 2012 by U.S. climate researcher Roy Spencer shows that after a cooler period in the 1960s and 1970s, U.S. temperatures returned to their earlier level. Unlike the official weather station record, Spencer's data includes only those stations that record temperature at a consistent time of day.<ref name="Spencer" />
Difficulties with the theory:
Difficulties with the theory: