Changes

'''Anthropogenic global warming''' (AGW) is a theory that suggests that human activity is causing the [[Earth]] to warm. The theory posits that greenhouse gases, including carbon dioxide, methane, nitrous oxide, and water vapor, trap solar warmth on the planet. Computer models suggest that industrial and vehicular emissions could lead to catastrophic warming. [[Leftist]]s use this theory as a basis to propose cuts in energy production and consumption and promote de-industrialization.

'''Anthropogenic global warming''' (AGW) is a theory that suggests that human activity is causing the [[Earth]] to warm. The theory posits that greenhouse gases, including carbon dioxide, methane, nitrous oxide, and water vapor, trap solar warmth on the planet. Computer models suggest that industrial and vehicular emissions could lead to catastrophic warming. [[Leftist]]s use this theory as a basis to propose cuts in energy production and consumption and promote de-industrialization.

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." Despite the numerous flaws detailed in the "Harry Read Me" file, the IPCC still favors the CRU's HadCRUT4 temperature record. This record shows warming of less than 0.6 degree from 1979 to 2014. See "[[Global_warming#The_temperature_record |The Temperature Record]]."</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 were 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." Despite the numerous flaws detailed in the "Harry Read Me" file, the IPCC still favors the CRU's HadCRUT4 temperature record. This record shows warming of less than 0.6 degree from 1979 to 2014. See "[[Global_warming#The_temperature_record |The Temperature Record]]."</ref>

Radiosonde and satellite data are the most accurate sources for global temperature, but they do not go back far enough to reveal the long-term 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 recorded 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 reveal the long-term 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 recorded temperature at a consistent time of day.<ref name="Spencer" />  

==History==

==History==

===Origin===

===Origin===

In 1827, French scientist Joseph Fourier suggested that although the atmosphere allowed sunlight to pass through to warm the Earth, it blocked "dark heat" (infrared radiation) from the Earth and thus prevented energy from being transferred back into space.<ref name=Fourier>Fourier, Jean Baptist Joseph, "On the Temperatures of the Terrestrial Sphere in Interplanetary Space", Translated in ''The Warming Papers: The Scientific Foundation for Climate Change Forecast''. The relevant section is pp. 12-13.</ref> Fourier did make an unfortunate analogy between the Earth's atmosphere and a space enclosed by glass. All the same, it may not be fair to blame Fourier for the greenhouse effect meme. He also discusses convection as an alternative explanation and, as a good scientist, recommends an experiment to resolve the issue.  

In 1827, French scientist [[Joseph Fourier]] suggested that although the atmosphere allowed sunlight to pass through to warm the Earth, it blocked "dark heat" (infrared radiation) from the Earth and thus prevented energy from being transferred back into space.<ref name=Fourier>Fourier, Jean Baptist Joseph, "On the Temperatures of the Terrestrial Sphere in Interplanetary Space", Translated in ''The Warming Papers: The Scientific Foundation for Climate Change Forecast''. The relevant section is pp. 12-13.</ref> Fourier did make an unfortunate analogy between the Earth's atmosphere and a space enclosed by glass. All the same, it may not be fair to blame Fourier for the greenhouse effect meme. He also discusses convection as an alternative explanation and, as a good scientist, recommends an experiment to resolve the issue.  

In 1861, Irish scientist John Tyndall measured the absorption of radiant energy by various gases in the atmosphere. He concluded that water vapor was the gas primarily responsible. It could therefore be considered the warming agent that Fourier hypothesized. Tyndall suggested that changes in humidity could bring about climate change.

In 1861, Irish scientist John Tyndall measured the absorption of radiant energy by various gases in the atmosphere. He concluded that water vapor was the gas primarily responsible. It could therefore be considered the warming agent that Fourier hypothesized. Tyndall suggested that changes in humidity could bring about climate change.