There’s that ~60 year cycle again. Rediscovered photographs taken from aircraft show that glacier retreat in the warm 1930′s matches the rate observed in the 1990′s. Something is collapsing, but rather than glaciers, it’s the AGW narrative.
H/T Ned Nikolov
An aerial view of 80 years of climate-related
glacier ﬂuctuations in southeast Greenland
Anders A. Bjørk et al 2012
Widespread retreat of glaciers has been observed along the southeastern margin of Greenland. This retreat has been
associated with increased air and ocean temperatures. However, most observations are from the satellite era; presatellite
observations of Greenlandic glaciers are rare. Here we present a unique record that documents the frontal positions for
132 southeast Greenlandic glaciers from rediscovered historical aerial imagery beginning in the early 1930s. We combine
the historical aerial images with both early and modern satellite imagery to extract frontal variations of marine- and
land-terminating outlet glaciers, as well as local glaciers and ice caps, over the past 80 years. The images reveal a regional
response to external forcing regardless of glacier type, terminal environment and size. Furthermore, the recent retreat was
matched in its vigour during a period of warming in the 1930s with comparable increases in air temperature. We show that
many land-terminating glaciers underwent a more rapid retreat in the 1930s than in the 2000s, whereas marine-terminating
glaciers retreated more rapidly during the recent warming.
The full pdf is available here.