For a long time, climate action has been associated with cutting Carbon dioxide (CO2) emissions.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/crucial-meet-today-climate-action
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/emission-targets
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/montreal-protocol
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/thailand
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydrochlorofluorocarbons-hcfcs
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/teri
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/unfccc