Thanks, Maggie.  I had missed this too.

It's important to note, along with the possible positive feedback processes, the simultaneous possible cooling effect on world climate of any large volume of air-borne volcanic ash.  I don't know how to estimate the relative weights of the opposing effects.


On 2017-12-29 4:19 PM, Maggie Zhou wrote:
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I missed this in the summer -
Most worrying is the following feedback loop: global warming -> melting icesheet -> less pressure on top of lands -> more seismic activity including volcanoes & earthquakes -> accelerated melting of ice sheets, and ALSO enlargement of the ozone hole and abrupt warming (see 2nd & 3rd links below)!
Scientists discover 91 volcanoes below Antarctic ice sheet
'This is in addition to 47 already known about and eruption would melt more ice in region affected by climate change'