Deliberate illegal manipulation of temperature station data by US climate bodies such as GHCN.

                 Christopher Booker(Sunday Telegraph) reports recently of the discoveries of Paul Homewood(Notalotofpeopleknowthat blog) that the official US GHCN  climate network has been manipulating temperature data from weather stations.  GHCN is the US government`s Global Historical Climate Network.   His original discovery was around three weather stations in Paraguay where he found that the actual trends of 60 years of temperature data had been dramatically reversed, so that a cooling trend was changed to one that showed a marked warming.  Homewood then checked other South American weather stations around the original three.  In each case he found the same suspicious one way adjustments.   Homewood is now investigating weather stations across much of the Arctic, between Canada(51 degrees W) and the heart of Siberia(87 degrees E).  He found that in nearly every case the same one way adjustments have been made, to show warming up to 1 degree C or more higher than was indicated by the original real data that was actually recorded. Giss has now lowered Arctic temperatures to give the impression of warming.   In other words fraud on an unprecedented scale.   Giss is the Goddard Institute for Space Studies originally led by James Hansen  whose  predictions have been totally discredited.