I asked for further information, which has now been given.
http://www.thegentlewaybook.com/mailwizz/index.php/campaigns/pk129nkmqtca3It was said that the rate of rise will slow down, partly because of the side effect of the mini ice-age.
However, there will continue to be a very slow rise.
In the meantime, flooding - especially at time of storm surges - will become a problem. Whilst sea defences will eventually be built up it will only 'afterwards'.
Simon