Changes

Climategate has jeopardized the [[integrity]] of worldwide scientific data on [[climate change]].<ref name=dataintegrity>Willis Eschenbach. [http://wattsupwiththat.com/2009/12/08/the-smoking-gun-at-darwin-zero/ The Smoking Gun At Darwin Zero], ''Watts Up With That?'', December 08, 2009.</ref><ref>On December 11, 2009, the ''Economist'' published an unsigned article attacking the work by Willis Eschenbach. This open letter is Eschenbach's reply. [http://wattsupwiththat.com/2009/12/12/sticky-for-smoking-gun-at-darwin-zero/ Willis: Reply to the Economist], ''WUWT'', December 12, 2009.</ref> There are two objections that question the validity of temperature data from the IPCC report released in 2007, one of which Climategate does not affect. The earth has generally been warming since the [[Little Ice Age]], around [[AD]] 1650 (Akasofu, 2007).<ref>Is the Earth still recovering from the “Little Ice Age”? (2007) A possible cause of global warming [http://www.iarc.uaf.edu/highlights/2007/akasofu_3_07/Earth_recovering_from_LIA.pdf PDF] by Syun-Ichi Akasofu, ''International Arctic Research Center'', University of Alaska Fairbanks.</ref> The second objection has questioned the integrity of the data, as pointed out from ''Watts Up With That?'' in an article written by Willis Eschenbach. There are three main global temperature datasets, as clarified by Eschenbach.  

Climategate has jeopardized the [[integrity]] of worldwide scientific data on [[climate change]].<ref name=dataintegrity>Willis Eschenbach. [http://wattsupwiththat.com/2009/12/08/the-smoking-gun-at-darwin-zero/ The Smoking Gun At Darwin Zero], ''Watts Up With That?'', December 08, 2009.</ref><ref>On December 11, 2009, the ''Economist'' published an unsigned article attacking the work by Willis Eschenbach. This open letter is Eschenbach's reply. [http://wattsupwiththat.com/2009/12/12/sticky-for-smoking-gun-at-darwin-zero/ Willis: Reply to the Economist], ''WUWT'', December 12, 2009.</ref> There are two objections that question the validity of temperature data from the IPCC report released in 2007, one of which Climategate does not affect. The earth has generally been warming since the [[Little Ice Age]], around [[AD]] 1650 (Akasofu, 2007).<ref>Is the Earth still recovering from the “Little Ice Age”? (2007) A possible cause of global warming [http://www.iarc.uaf.edu/highlights/2007/akasofu_3_07/Earth_recovering_from_LIA.pdf PDF] by Syun-Ichi Akasofu, ''International Arctic Research Center'', University of Alaska Fairbanks.</ref> The second objection has questioned the integrity of the data, as pointed out from ''Watts Up With That?'' in an article written by Willis Eschenbach. There are three main global temperature datasets, as clarified by Eschenbach.  

:* One is at the CRU, Climatic Research Unit of the University of East Anglia.  

:* One is at the [[CRU]], Climatic Research Unit of the University of East Anglia.  

:* Another one is at NOAA (GHCN), the Global Historical Climate Network.  

:* Another one is at NOAA ([[GHCN]]), the Global Historical Climate Network.  

:* The final one is at [[NASA]] (GISS), the Goddard Institute for Space Studies.  

:* The final one is at NASA ([[GISS]]), the Goddard Institute for Space Studies.  

The three groups take raw data, and they "homogenize" it to remove temperature discrepancy's that occur when a station is moved to a warmer or colder location. One of the things that was revealed in the released CRU emails is that the CRU basically uses the Global Historical Climate Network (GHCN) dataset for its raw data.<ref>[http://www.climate-gate.org/search.php?keyword=GHCN&topEmails=&submit=Search Search - GHCN], climate-gate.org, Climategate Document Database.</ref> This raw data is downloaded from GISS, but GISS uses the GHCN raw data as the starting point for their analysis. Both GISS and CRU get almost all of their raw data from GHCN. But the [[IPCC]] uses the "adjusted" data; GHCN adjusts the data to remove what it calls "inhomogeneities."  

The three groups take raw data, and they "homogenize" it to remove temperature discrepancy's that occur when a station is moved to a warmer or colder location. One of the things that was revealed in the released CRU emails is that the CRU basically uses the Global Historical Climate Network (GHCN) dataset for its raw data.<ref>[http://www.climate-gate.org/search.php?keyword=GHCN&topEmails=&submit=Search Search - GHCN], climate-gate.org, Climategate Document Database.</ref> This raw data is downloaded from GISS, but GISS uses the GHCN raw data as the starting point for their analysis. Both GISS and CRU get almost all of their raw data from GHCN. But the [[IPCC]] uses the "adjusted" data; GHCN adjusts the data to remove what it calls "inhomogeneities."