This is as we were coming out of the mini-Ice Age (the Maunder Minimum). Everyone knew that the earth was naturally warming. And in the 1800s, it wasn’t the fault of coal or SUVs.
In 1922, NOAA knew that the Arctic was undergoing a “radical change of climate”, and was “not recognizable” from the climate of 1868 to 1917.
In November that year, NOAA published this chapter in their Monthly Weather Review:
Via Paul Homewood