Until the 1960s, forest-clearing accounted for most anthropogenic carbon emissions.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/hope-trees
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economist-london
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/france
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cop-21-paris
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/deforestation
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/norway
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/germany
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/japan
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/australia
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide