[quote=Adam Cheeseman;165963]
Quote:
Originally Posted by Adam Cheeseman 
My question sounds a bit daft thinking about it. What I meant was, once polar ice-caps had become established had there subsequently been a period where there wasn't ice at the poles.
Cheers,
Adam
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nope not daft, the polar ice caps have been there a long time, i don't think they've ever disappeared since becoming established. they recede and expand in the seasons though, as the sea starts to freeze over in winter. there've been a couple of oaccasions when research groups have gotten stuck down there cos it froze earlier than usual. oops.
