Interesting ice extent maps from 1901 and beyond

[joshcryer]

10. If you search for "Nautisk Meteorologisk Aarbog" you can find these maps in high quality.

They're mostly meaningless though, sea ice extent doesn't tell the whole story, and their data collection methods back then were not exactly the best of the best.

Here's the link of all the maps, which, typically, WUWT cherry picks: http://brunnur.vedur.is/pub/trausti/Iskort/

edit2: it does appear that he did link that page at the bottom there...