In 1974, the CIA showed a huge temperature spike in Iceland in the 1930’s and 1940’s
The 1975 National Academy Of Sciences Report showed the same 1940’s spike in Greenland.
1975 National Academy Of Sciences Report
By 1940, the glaciers of north-east Greenland were nearing a catastrophe.
06 May 1940 – Greenland’s Climate Becoming Milder
The 1940’s warmth wrecked NASA’s global warming story, so they simply erased it.