Zeev's Turnips Talk Politics (ZTTP)

[brainlessone]

if ice froze and sunk, the next incremental bit of water on top of the ice would freeze and sink, so as you guessed the oceans and lakes would freeze over and no fish and no plankton
and no minerals from the deep. The artic would be frozen miles deep and hudson bay and at very least life would be different. And there would no hockey except indoors