New York and European coastal cities are more at risk of a watery future than Reykjavik, due to regional differences in sea-level rises when ice melts at polar caps.. A Dutch attempt to model regional variations shows major differences could occur from the global average predicted in 2007 that sea levels would rise at least 28cm by 2100.
Ocean currents and differences in temperature and salinity mean that sea levels vary by up to a metre across oceans.
