Current Melting of Greenland's Ice Mimicks 1920s-1940s Event

Many many papers acknowledge the warm periods experienced by the Arctic during the 20s and 30s.

Many papers used by alarmist even concur with that of BOX etal  (mjp2 mate).  But to get alarmist to acknowledge that Greenland experienced similar glacial loss back then is like extracting teeth from an alarmist.

Well here is the National Science Foundation acceptance of Box et al paper   and summarised in the "science daily" They actually quote none other than Jason BOX himself.

Whilst the paper itself does express concern about future warming the findings are clear.  Greenland is not in new territory.  It has experienced at least similar ice mass loss in the roaring 20s.  Box et al findings even build a dataset of Greenland  for which Skeptical Science use.  But they only use the parts they like.  As do some others here on HC

https://www.sciencedaily.com/releases/2007/12/071210094332.htm





Current Melting of Greenland's Ice Mimicks 1920s-1940s Event


They recently recognized from using weather station records from the past century that temperatures in Greenland had warmed in the 1920s at rates equivalent to the recent past. But they hadn't confirmed that the island's glaciers responded to that earlier warming, until now.


Digging through the old data, Herrington found a map from 1932 and an aerial photo from 1933 that documented how, during a warm period, the Kangerdlugssuaq Glacier lost a piece of floating ice that was nearly the size of New York 's Manhattan Island



Of course one needs to back up these findings with historical accounts.



http://trove.nla.gov.au/newspaper/article/168839462/18971805







http://adsabs.harvard.edu/abs/2007AGUFM.C11A0077B

While climate warming is suggested to have caused acceleration of Greenland Ice Sheet outlet glaciers, recent warming, however, is not without precedent. Examination of Greenland's meteorological stations confirms that 1920s through 1940s surface-air temperature anomalies were at least as equal in magnitude to the recent "global warming" decade, yet observations have not yet been compiled to confirm a similar glacier response. Mining The Ohio State University Libraries, this work compiles historical observations of glacier front positions and surface velocities from maps, photographs and other documentary evidence from mid 19th century Arctic expeditions. Of the glaciers reviewed, an acceleration and retreat indeed occurred between 1920 and 1940. The research put forth is thus consistent with a dynamical response in Greenland's outlet glaciers to the "roaring twenties" warming.