"John Hall" wrote in message
...
In article ,
Dave Ludlow writes:
Well Carbon Dioxide snow would be first, at a bit below -78.5 deg C.

Has that ever been seen in Antarctica? I believe the lowest temperatures
recorded there aren't too far away from that value.

I was just thinking that. I think the lowest is about -90C.
So at least in theory there should be a tiny layer of 'snowed out' CO2
on the surface of the normal snow.

Col
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