Tag: Antarctic Sea Ice

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This is interesting.

Researchers found that ice conditions in the 19th century were remarkably similar to today’s, observations falling within normal variability. The study is Accounts from 19th-century Canadian Arctic Explorers’ Logs Reflect Present Climate Conditions (here) by James E. Overland, Pacific Marine Environmental Laboratory/NOAA, Seattle,Wash., and Kevin Wood, Arctic Research Office/NOAA, Silver Spring, Md.

This article demonstrates the use of historical instrument and descriptive records to assess the hypothesis that environmental conditions observed by 19th-century explorers in the Canadian archipelago were consistent with a Little Ice Age as evident in proxy records.  We find little evidence for extreme cold conditions.

It is clear that the first-hand observations of 19th-century explorers are not consistent with the hypothesized severe conditions of a multi-decadal Little Ice Age. Explorers encountered both warm and cool seasons, and generally typical ice conditions, in comparison to 20th-century norms.

 

 

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Antarctic sea ice had barely changed from where it was 100 years ago, scientists have discovered, after pouring over the logbooks of great polar explorers such as Robert Falcon Scott and Ernest Shackleton.

Experts were concerned that ice at the South Pole had declined significantly since the 1950s, which they feared was driven by man-made climate change.

But new analysis suggests that conditions are now virtually identical to when the Terra Nova and Endurance sailed to the continent in the early 1900s, indicating that declines are part of a natural cycle and not the result of global warming.

 

http://www.telegraph.co.uk/science/2016/11/24/scott-shackleton-logbooks-prove-antarctic-sea-ice-not-shrinking/

(h/t https://notalotofpeopleknowthat.wordpress.com/)

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