When ice melts in a glass of water the overall level of water in the glass goes down because ice has a higher volume. Would this be true for the oceans then if the ice caps melt and if not why?

Question

When ice melts in a glass of water the overall level of water in the glass goes down because ice has a higher volume. Would this be true for the oceans then if the ice caps melt and if not why?

In: Other

Answer 1

Yes, for floating ice like at the North Pole. Its melting would not raise sea levels at all.

But no, for land-borne ice like at the South Pole. That ice is not floating, so its melt water would contribute to increasing sea levels. Since most ice is land-borne, this could become a problem for coastal communities.