Gristmill ("How to talk to skeptic") got the graph shown from the Climate Research Unit, School of Environmental Sciences University of East Anglia:
http://www.cru.uea.ac.uk/cru/info/warming/
I haven't clicked on all their links, so I don't know where they got their data, and so can't agree or disagree on their having falsified the NASA data.
They do NOT show a "0" point at 1980 - a LOW point in NASA's graph!
What NASA graph?
I think CRU set the "0" point at 1939, not 1980:
It's not so much that "falsified" NASA data, more that they (deliberately) are presenting it from "zero" points and in a graph format that shows the wrong conclusion. So you see large red lines, but not the declines and drops.
You "see" a huge increase, but the actual increase is LESS THAN 1/2 of one degree. Make sense?