Using hundreds of old aerial photographs dating back to 1937, combined with modern computer technology, researchers have tracked the evolution of glaciers in East Antarctic. The area covers approximately 2,000 kilometers of coastline and contains as much ice as the entire Greenland Ice Sheet.
Compared to modern data, the ice flow speeds are unchanged, or at least not in any way related to our emission of 1,600 billion tons of carbon dioxide.
Antarctica has undergone rapid glacier and sea ice expansion in recent centuries
Recent data have been reported for 10 Antarctic stations under operation scattered along the Antarctic coastline. These results are not impacted by volcanic activity. Results? Zero warming which is really inconvenient news for global warming activists.
West Antarctica’s mean annual surface temperatures cooled by more than -1.8 C (-0.93 C per decade) from 1999-2018. Not just West Antarctica, but most of the continent also has cooled by more than -1 C in the 21st century.
Throughout the Holocene (Medieval Warm Period, Roman Warm Period, and earlier) and until a few hundred years ago (from ~ 7,100 to 500 years before the present), coastal Antarctica’s Victoria Land (VLC) was substantially warmer than today.
The Ross Sea was also sufficiently ice free to allow for elephant seal populations (as large as ~200,000 individuals) to thrive. Today, however, elephant seal populations, which require extended sea ice free sea waters to breed, forage, and provide nourishment for their pups, can no longer subsist anywhere even remotely close to the coasts of the Antarctic continent. It is now too cold and the sea ice is too extensive.
More evidence emerges that Antarctica has undergone rapid glacier and sea ice expansion in recent centuries, in line with long term and recent Antarctic cooling trend.
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