Skeptic Arguments and What the Science Says Claims about adaptation Claims about IPCC Claims about the sun Claims about other planets Claims about greenhouse gas Claims about climategate Claims about consensus Claims about temperature data Claims about predictions Claims about oceans Claims about Greenland Claims about cooling Claims about historical precedent Miscellaneous claims Claims about sea level rise Claims about other effects Learn more about debate mapping Claims about CO2 missing citation Polar regions no reference given no citation Volcano related Human related

Map Node  Claims about temperature data url anchor

Question Node  What are the temperature data arguments? url anchor

Answer Node  Dropped stations introduce warming bias url anchor

Tags:  warming trend, Temperature data

Pro Node  Two American researchers allege that U.S. government scientists have skewed global temperature trends by ignoring readings from thousands of local weather stations around the world, particularly those in colder altitudes and more northerly latitudes, such as Canada. url anchor

Tags:  climategate
Reference Node  http://www.vancouversun.com/technology/Scientists%20using%20selective%20temperature%20data%20skeptics/2468634/story.html url anchor
Reference: http://www.vancouversun.com/technology/Scientists%20using%20selective%20temperature%20data%20skeptics/2468634/story.html

Con Node  If the dropped stations had been kept, the temperature would actually be slightly higher url anchor

Reference Node  http://www.skepticalscience.com/Dropped-stations-introduce-warming-bias.htm url anchor
Reference: http://www.skepticalscience.com/Dropped-stations-introduce-warming-bias.htm

Answer Node  Satellites show no warming in the troposphere url anchor

Tags:  satellite data, Temperature data, troposphere

Pro Node  Satellite measurements indicate an absence of significant global warming since 1979 url anchor

Satellite measurements indicate an absence of significant global warming since 1979, the very period that human carbon dioxide emissions have been increasing rapidly. The satellite data signal not only the absence of substantial human-induced warming but also provide an empirical test of the greenhouse hypothesis - a test that the hypothesis fails. url anchor
Reference Node  http://members.iinet.net.au/~glrmc/RMC%20on%20warming%20-%20for%20Telegraph%2005-04%20ZZ.pdf url anchor
Reference: http://members.iinet.net.au/~glrmc/RMC%20on%20warming%20-%20for%20Telegraph%2005-04%20ZZ.pdf

Con Node  The most recent satellite data show that the earth as a whole is warming url anchor

Reference Node  http://www.skepticalscience.com/satellite-measurements-warming-troposphere.htm url anchor
Reference: http://www.skepticalscience.com/satellite-measurements-warming-troposphere.htm

Answer Node  There's no tropospheric hot spot" url anchor

Tags:  Temperature data, troposphere

Pro Node  the observed record of the Hadley Centre’s radiosondes, the predicted “hot-spot” signature of anthropogenic greenhouse warming is entirely absent url anchor

The IPCC confirms that computer modeling predicts the existence of a tropical, mid-troposphere “hot spot” about 10km above the Earth’s surface. Yet in the observed record of the Hadley Centre’s radiosondes, the predicted “hot-spot” signature of anthropogenic greenhouse warming is entirely absent url anchor
Reference Node  http://scienceandpublicpolicy.org/monckton/greenhouse_warming_what_greenhouse_warming_.html url anchor
Reference: http://scienceandpublicpolicy.org/monckton/greenhouse_warming_what_greenhouse_warming_.html

Con Node  We see a clear "short-term hot spot" - there's various evidence for a "long-term hot spot" url anchor

Reference Node  http://www.skepticalscience.com/tropospheric-hot-spot.htm url anchor
Reference: http://www.skepticalscience.com/tropospheric-hot-spot.htm

Answer Node  There's no empirical evidence url anchor

Tags:  Temperature data, empirical evidence

Pro Node  There is no actual evidence that carbon dioxide emissions are causing global warming.  url anchor

Note that computer models are just concatenations of calculations you could do on a hand-held calculator, so they are theoretical and cannot be part of any evidence url anchor
Tags:  global warming, models, carbon emissions, co2
Reference Node  a: http://climaterealists.com/index.php?id=3910 url anchor
Reference: http://climaterealists.com/index.php?id=3910
Tags:  David Evans

Con Node  There are multiple lines of direct observations that humans are causing global warming url anchor

Tags:  direct observations, global warming
Reference Node  http://www.skepticalscience.com/empirical-evidence-for-global-warming.htm url anchor
Reference: http://www.skepticalscience.com/empirical-evidence-for-global-warming.htm

Answer Node  It's not happening url anchor

Tags:  denial

Con Node  Recent global warming is occurring and is due to humans url anchor

Reference Node  http://www.skepticalscience.com/evidence-for-global-warming.htm url anchor
Reference: http://www.skepticalscience.com/evidence-for-global-warming.htm

Pro Node  The data for global warming is unreliable and cannot be trusted. url anchor

Tags:  Temperature data
Note Node  no citation given url anchor

Answer Node  Hockey stick is broken url anchor

Tags:  hockey stick, Temperature data

Con Node  Recent studies agree that recent global temperatures are unprecedented in the last 1000 years. url anchor

Reference Node  http://www.skepticalscience.com/broken-hockey-stick.htm url anchor
Reference: http://www.skepticalscience.com/broken-hockey-stick.htm

Pro Node   the chart was derived with many errors url anchor

In 2003 Professor McKitrick teamed with a Canadian engineer, Steve McIntyre, in attempting to replicate the hockey stick and debunked it as statistical nonsense. They revealed how the chart was derived from 'collation errors, unjustified truncation or extrapolation of source data, obsolete data, incorrect principal component calculations, geographical mislocations and other serious defects', substantially affecting the temperature index. url anchor
Reference Node  http://www.americanthinker.com/2009/09/global_warming_science.html url anchor
Reference: http://www.americanthinker.com/2009/09/global_warming_science.html

Answer Node  Temp record is unreliable url anchor

Tags:  Unreliable data, Temperature data

Con Node  The warming trend is the same in rural and urban areas, measured by thermometers and satellites. url anchor

Tags:  rural areas, urban areas, warming trend
Reference Node  http://www.skepticalscience.com/surface-temperature-measurements.htm url anchor
Reference: http://www.skepticalscience.com/surface-temperature-measurements.htm

Pro Node  Poor weather station locations url anchor

U.S. weather stations have been located next to exhaust fans of air conditioning units, surrounded by asphalt parking lots, on blistering-hot rooftops, and near sidewalks and buildings that absorb and radiate heat. 89 percent of the stations fail to meet the National Weather Service’s own siting requirements that stations must be 30 metres away from an artificial heating or radiating/reflecting heat source. url anchor
Reference Node  http://www.heartland.org/books/SurfaceStations.html url anchor
Reference: http://www.heartland.org/books/SurfaceStations.html
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