Carbon emissions rise since 1990.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pollution-check-hyderabad-takes-backseat
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-chronicle-telangana
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/telangana
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heavy-duty-vehicle
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-monoxide
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmentalists
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming