Changes

The UN's Intergovernmental Panel on Climate Change ([[IPCC]]) has issued a series of reports endorsing the theory of [[anthropogenic global warming]]. Supporters of this theory call the IPCC assessments authoritative, and use this as the basis to justify ratification of the global warming treaty (see [[Kyoto Protocol]]).

The UN's Intergovernmental Panel on Climate Change ([[IPCC]]) has issued a series of reports endorsing the theory of [[anthropogenic global warming]]. Supporters of this theory call the IPCC assessments authoritative, and use this as the basis to justify ratification of the global warming treaty (see [[Kyoto Protocol]]).

==Loss of objectivity amoung scientists==

==Loss of objectivity among scientists==

[[Hans von Storch]] and [[Nico Stehr]] wrote:  

[[Hans von Storch]] and [[Nico Stehr]] wrote:  

:In an article we published in the professional journal ''Science'' in October 2004, we were able to demonstrate that the underlying methodology that led to this [[hockey stick curve]] is flawed. Our intention was to turn back the spiral of exaggerations somewhat, but without calling the core statement into question, which is that human-induced climate change does exist. Prominent members of the climate research community did not respond to the article by engaging use in a dispute over the facts. Instead, they were concerned that the worthy cause of climate protection had been harmed. [http://www.spiegel.de/international/spiegel/0,1518,342376,00.html]

:In an article we published in the professional journal ''Science'' in October 2004, we were able to demonstrate that the underlying methodology that led to this [[hockey stick curve]] is flawed. Our intention was to turn back the spiral of exaggerations somewhat, but without calling the core statement into question, which is that human-induced climate change does exist. Prominent members of the climate research community did not respond to the article by engaging use in a dispute over the facts. Instead, they were concerned that the worthy cause of climate protection had been harmed. [http://www.spiegel.de/international/spiegel/0,1518,342376,00.html]

Supporters of Kyoto have famously asserted that temperatures in 1998-2007 are the highest in 1,000 years. However, peer-reviewed research published in scientific journals contradicts this claim.

Supporters of Kyoto have famously asserted that temperatures in 1998-2007 are the highest in 1,000 years. However, peer-reviewed research published in scientific journals contradicts this claim.

In 2003, the "[[hockey stick graph]]" of [[Michael Mann]] was examined by McIntyre and McKitrick in ''Energy & Enviornment''. They found that:

In 2003, the "[[hockey stick graph]]" of [[Michael Mann]] was examined by McIntyre and McKitrick in ''Energy & Environment''. They found that:

:the estimation of temperatures from 1400 to 1980 contains collation errors, unjustifiable truncation or extrapolation of source data, obsolete data, geographical location errors, incorrect calculation of principal components and other quality control defects. [http://www.climateaudit.org/pdf/mcintyre.mckitrick.2003.pdf]

:the estimation of temperatures from 1400 to 1980 contains collation errors, unjustifiable truncation or extrapolation of source data, obsolete data, geographical location errors, incorrect calculation of principal components and other quality control defects. [http://www.climateaudit.org/pdf/mcintyre.mckitrick.2003.pdf]