You have cause-and-effect backwards ... glaciers do not cause sub-freezing temperatures ... if fact, we find sub-freezing temperatures where there's never been glaciers ... like Cape Kennedy when the SS Challenger flew for the last time ... do you see any glaciers in Florida? ...
Again: Which of the meteorological parameters involves surface composition? ... or easier: which of the climatological parameters involves surface composition? ... does ice on the ground change pressure, humidity, wind velocity, precipitation ... or temperature? ...
Does ice on the ground cause freezing? ... because that's what you're saying ... it would be 100ºF, except there's ice so the temperature are forced down to 31ºF ... you know, instead of melting the ice ...