NOAA, the National Oceanic and Atmospheric Administration–a branch of NASA–has been continuously altering temperature history for years. In general, NOAA’s adjustments have made the past seem colder than it was actually measured by thermometers. This, of course, allows the government to claim that temperatures have risen dramatically.
But until recently, NOAA’s online pages also gave access to the raw data, which showed that US temperatures have not warmed at all since the 1800s.
Now, NOAA’s websites have REMOVED the raw data. Now the public can only see the government-adjusted data.