Research finds 20cm rise since start of 20th century, caused by global warming and the melting of polar ice, is unprecedented.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/sea-level-rise-over-past-century-unmatched-6000-years-says-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/guardian-uk
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sea-level-rise
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/glacial-melt
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/polar-ice-sheet
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/scientists
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/greenland
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/seychelles
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmental-science