There's "everything is always underwater" rise, whichbis 1600 years off. Then there's "average highwater mark during a storm at high tide", which will exceed those 6m a lot sooner and is the point at which the island ceases to become at all inhabitable.
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There are different sorts of rise to worry about.
There's "everything is always underwater" rise, whichbis 1600 years off. Then there's "average highwater mark during a storm at high tide", which will exceed those 6m a lot sooner and is the point at which the island ceases to become at all inhabitable.