The Briefing Room
General Category => Climate Change => Topic started by: rangerrebew on April 16, 2024, 11:11:18 am
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Antarctica Is Colder, Icier Today Than At Any Time In 5,000 Years
by Kenneth Richard 8 hours ago
More evidence emerges that Antarctica has undergone rapid glacier and sea ice expansion in recent centuries, in line with the long-term and recent Antarctic cooling trend. [emphasis, links added]
West Antarctica’s mean annual surface temperatures cooled by more than -1.8°C (-0.93°C per decade) from 1999-2018 (Zhang et al., 2023).
Not just West Antarctica, but most of the continent also has cooled by more than 1°C in the 21st century. See, for example, the ~1°C per decade cooling trend for East Antarctica (2000 to 2018) shown in Fig. ES1 (right).
According to a new study, about 6,000 years ago Antarctica’s Collins Glacier’s frontline was a full 1 km southwest of its current extent. The frontline advanced to today’s extent ~5,000 years ago.
https://climatechangedispatch.com/antarctica-is-colder-icier-today-than-at-any-time-in-5000-years/