Air pollution in north India doesn't only affect local residents.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/north-india-may-be-impacting-global-climate
[2] http://admin.indiaenvironmentportal.org.in/category/author/vaishnavi-chandrashekhar
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nasa
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/monsoons
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-monoxide