GISS datasets are used by the UN Intergovernmental Panel on Climate Change (IPCC) to document global warming.
In a presentation at the 2012 EIKE Climate Conference in Germany, Professor Friedrich-Karl Ewert, a retired geologist and data expert from theUniversity of Paderborn, said that he examined publicly available archived temperature records from 1,153 weather stations around the globe going back to 1881 and found evidence of “massive” tampering by GISS between 2010 and 2012 .... http://www.cnsnews.com