Links:
[1] http://admin.indiaenvironmentportal.org.in/news/%E2%80%98green-airlines-can-be-attractive%E2%80%99
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-world-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-transport
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/emission-targets
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biofuel
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/london
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dohan