Not much if you live on the 50th storey in any major city. Half a millimeter to an islander or a coastal dweller takes a lot of meaning, especially when this half millimeter grows day by day. We have good evidence to that, indeed, the sea level rose by about 1.8mm per year during the 20th century. Although the IPCC is being labeled as being conservative in its estimates, it does in fact show how difficult the work of the IPCC can be, to ensure it presents the best and most acceptable data.
The melting of
1996 – Melting of the Antarctic ice estimated to be 83 billion tonnes of water
2007 – Melting of the Antarctic ice estimated to be 138 billion tonnes of water
If your refrigerator was melting at this rate, whether it was flooding your house or not, you would have good reason to be worried.
Naturally, we islanders are worried. Already there have been reports of heavy erosion in many areas, some islanders have had to be relocated (more stories/videos on this coming), and some heritage sites have also been lost.