http://data.giss.nasa.gov/cgi-bin/gistemp/show_station.cgi?id=620040300000&dt=1&ds=1

During the previous year, climategate scientists discussed their desire to get rid of the 1940s spike

From: Tom Wigley <wigley@ucar.edu>
To: Phil Jones <p.jones@uea.ac.uk>
Subject: 1940s
Date: Sun, 27 Sep 2009 23:25:38 -0600
Cc: Ben Santer <santer1@llnl.gov>

It would be good to remove at least part of the 1940s blip, but we are still left with “why the blip”.

di2.nu/foia/1254108338.txt

By 2013, they had done exactly what they wanted to – removed the 1930s-1940s blip

They accomplished this by an impressive 2 degrees (3.6F) of data tampering, lowering 1940 temperatures and increasing present temperatures.

So were the Climategate scientists justified in removing the 1940s Arctic spike? Scientists in 1940 reported 6C warming and rapidly disappearing ice. The warming was real, and modern climate scientists are trying to rewrite history.

http://trove.nla.gov.au/

Papers Past — Auckland Star — 14 December 1940 — WARMER ARCTIC