Re: Refreeze the poles?
"The same rise that has gone on for as long as we have been measuring sea levels..?"
Well no - it's has accelerated from near zero rise at the start of the industrial revolution to a few mm a year now. See for instance http://www.skepticalscience.com/Past-150000-Years-of-Sea-Level-History-Suggests-High-Rates-of-Future-Sea-Level-Rise.html
"Remind me - what proportion of the current interglacial does the satellite record cover?"
See the 150,000 years of sea levels versus polar temperature data referenced above if the recent satellite record isn't enough for you.