| http://www.w3.org/ns/prov#value | - Jon Snow 2012-05-31 11:07:02 AM Greenland's glacier history: Ice retreat was as drastic in the 1930s as it is today he is obscuring more than elucidating.The 1930s were a period of warming for Greenland and some other parts of the world (e.g. the American midwest).This is a plot of temperature anomalies relative to a 1951-1980 baseline.
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