NASA didn’t like the fact that their 2001 level of data tampering didn’t show much warming, so they further altered the data to double 1880-2000 warming. In 2001, NASA showed 0.5C 1880-2000 warming, and by 2015 they had increased it to 1.0C 1880-2000 warming.
Scientists tell us that fake temperature data from NASA and NOAA threatens to melt Glacier National Park, and bring us closer to the fatal, imaginary two degrees warming.