Most Of Antarctica Has Cooled By Over 1°C Since 1999

We hear a lot about Arctic warming, Greenland in particular. How come we don't hear much about Antarctic cooling? Could there be a natural balancing going on that nobody wants to talk about?

New research indicates West Antarctica’s mean annual surface temperatures cooled by more than -1.8°C (-0.93°C per decade) from 1999-2018. In spring, the West Antarctic Ice Sheet (WAIS) cooling rate reached -1.84°C per decade.

Not only has the WAIS undergone significant cooling in the last two decades, but most of the continent has also cooled by more than 1°C.

Of 28 CMIP6 models, none captured a cooling trend – especially of this amplitude – for this region. This modeling failure “implies substantial uncertainties in future temperature projections of CMIP6 models.”

The post-1999 cooling trend has not been confined to Antarctica.

Sea surface temperatures (SSTs) in the Eastern and Central Pacific (south of 25°N) also cooled from 1999-2018 relative to 1979-1997.

This cooling encompasses nearly half of the Southern Hemisphere’s SSTs.

The 1999-2018 mean annual surface temperature cooling of the Antarctic continent and nearly half of the Southern Hemisphere’s SSTs do not support the claims that surface warming is driven by human emissions of ‘greenhouse gases’.

After all, if the increase in ‘GHG forcing’ can’t explain the widespread cooling, why would the same concentrations of ‘GHG’s explain the areas with warming temperatures?



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