Dave Knowles, your claim is simply, well, a lie. There has been no nefarious “doctoring or records” by NASA and NOAA. The reality is that Scientists use four major datasets to study global temperature. The UK Met Office Hadley Centre and the University of East Anglia’s Climatic Research Unit jointly produce HadCRUT4 .
In the US, the GISTEMP series comes via the NASA Goddard Institute for Space Sciences (GISS), while the National Oceanic and Atmospheric Administration (NOAA) creates the MLOST record. The Japan Meteorological Agency ( JMA) produces a fourth dataset.
Guess what? They all agree and show the same warming trend. A little education goes much further that a lot of denial. Educate yourself.