Antarctic Volcanism

There are currently 25 active volcanoes (denoted by red triangles ),on the Antarctic plate, Mount Erebus has been continuously active since 1972

The sun, acting on the resultant aerosol gases, causes depletion of the ozone layer, in winter it recovers, [ misinterpretation (helped by Du Pont) of the term ‘aerosol gases’ lead to the “Ozone Hole” scare of the 1970s. see –   http://www.capitolhilloutsider.com/unresolved-crisis-of-ozone-depletion/  ]

 

Antarctic Volcanism

Click on Erebus in this list – http://www.volcanodiscovery.com/erupting_volcanoes.html
2013 Satellite views of Erebus http://earthobservatory.nasa.gov/IOTD/view.php?id=87444

Showing the area of Western Antarctica where some limited melting is occurring (often reported); while the rest is cooling (not reported).

Geothermal heating under Marie Byrd Land, plus the Larson B & Ross Ice Shelves has caused some limited melting – https://wattsupwiththat.com/2015/07/10/study-finds-surprisingly-high-geothermal-heating-beneath-west-antarctic-ice-sheet/ & http://archive.reportingclimatescience.com/ & https://news.wustl.edu/news/Pages/Antarctic-seismic-survey.aspx

Map of the West Antarctic Rift System https://www.ldeo.columbia.edu/~mstuding/tam_map_large.html
Rift basins exist in Ellsworth Land, linking GVIS and the Byrd Subglacial Basin, where elevated heat flow is likely to have influenced ice sheet development and stability. http://nora.nerc.ac.uk/10734/

All the sea ice graphs & links in one handy place for easy reference.
http://wattsupwiththat.com/reference-pages/sea-ice-page/