In the year 2000, NASA showed 0.5C warming from 1880 to 1999. Now they show 1.0C warming during that same period. The animation below was made using images captured directly from the NASA GISS web site.
This change was made via a hockey stick of data tampering.
But it is worse than it seems. Not only did NASA double warming by altering data, but they hid the warmth prior to 1880. In the 2000 version, there was little or no warming from the 1870’s to the 1970’s, and about 0.4C warming after the 1970’s.
As bad as this story is already, it gets worse. The 2016 version shows a very rapid increase in temperature after the year 1998, but satellites show little warming during that period.
NASA is hiding pre-1880 warmth, tampering with the 1880-1999 data, and showing a huge amount of imaginary warming since then. Junk science doesn’t get any worse than this.