No graph is more damning of NASA/NOAA temperature adjustments than this one. This is the rate of change to the NASA US temperature record since 1999.
On average, 1999 gets 0.02C warmer every year, and the 1940s get about 0.005C colder every year. The pre-1960 past continually gets colder with almost each new NASA data release, and the post-1960 past continuously gets warmer.
If the present refuses to get warmer, then the past must become cooler. How could anyone possibly believe these adjustments are legitimate?