In 2004, Gavin Schmidt reported decades of significant cooling over Antarctica.
Pubs.GISS: Abstract of Shindell and Schmidt 2004
In 2005, NASA published a map showing the cooling.
SVS: Antarctic Heating and Cooling Trends
By 2007, NASA had completely erased the cooling.
Disintegration: Antarctic Warming Claims Another Ice Shelf : Feature Articles
And by 2009, NASA had turned all the cooling into warming.
NASA – Satellites Confirm Half-Century of West Antarctic Warming
Government climate scientists alter data at will, because they know they can get away with it and the press will refuse to ask any questions. They have been given license to commit any level of fraud.