Links:
[1] http://admin.indiaenvironmentportal.org.in/news/mysterious-arctic-whale-under-threat-changing-habitat
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/guardian-uk
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ecology
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/habitat
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/arctic