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'''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. Some [[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. Some [[Leftist]]s use this theory as a basis to propose cuts in energy production and consumption and promote de-industrialization.
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.<ref name="Spencer" /> There are also temperature records based on weather balloon data and satellite readings, but these records do not go back far enough to reveal the full temperature cycle. Although recent climate trends are much discussed in the media, the temperature shifts that have been recorded are modest and should not be conflate with the various climate doomsday scenarios, which are based on computer modelling.
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.<ref name="Spencer" /> There are also temperature records based on weather balloon data and satellite readings, but these records do not go back far enough to reveal the full temperature cycle. Although recent climate trends are much discussed in the media, the temperature shifts that have been recorded are modest and should not be conflated with the various climate doomsday scenarios, which are based on computer modelling.
Difficulties with the theory:
Difficulties with the theory: