The Arctic was warmer in the late 1930s.
The media keeps shouting that the “global warming” that took place during the late 1990s was unprecedented, and therefore definitely man-made.
But that is simply not true.
Take a took at this graph based on Hadcrut data.
The graph is relative to all areas between 70 and 90 ° Latitude North. Temperatures are taken from the CRU (Climate Research Unit).
After a period of cold culminating around 1916, you can see that the Arctic underwent a period of heating leading to the historic peak in the late 1930s.
The high in Arctic temperatures reached in 2010 was actually lower – lower! – than that of 1938.
This means that the warming between 1979 and today is not unprecedented.
Indeed, the most rapid heating period seems to have occurred between 1916 and 1920, when Arctic temperatures went up as much as 4 ° C in just four years.
Thanks to Martin Siebert for this info