CO2 emissions as a share of total worldwide CO2 emissions rose 4.50% to 1.89% in Iran in 2017, according to World Bank / EIA.
Historically, CO2 emissions as a share of total worldwide CO2 emissions in Iran reached an all time high of 1.89% in 2017 and an all time low of 0.196% in 1965. When compared to Iran's main peers, CO2 emissions as a share of total worldwide CO2 emissions in Iraq amounted to 0.421%, 0.566% in Pakistan and 0.236% in Turkmenistan in 2017.
Iran has been ranked 8th within the group of 79 countries we follow in terms of CO2 emissions as a share of total worldwide CO2 emissions, 2 places above the position seen 10 years ago.
| CO2 Emissions (As % of Total Worldwide CO2 Emissions) | Unit | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
| Afghanistan | % | 0.038% | 0.033% | 0.031% | 0.030% | ... | ... | ... | ||||||||||||||
| China | % | 27.5% | 27.7% | 28.1% | 28.0% | 27.9% | ||||||||||||||||
| India | % | 5.43% | 5.73% | 5.89% | 6.34% | 6.53% | ||||||||||||||||
| Iran | % | 1.70% | 1.69% | 1.75% | 1.83% | 1.81% | ||||||||||||||||
| Iraq | % | 0.325% | 0.344% | 0.364% | 0.351% | 0.354% | ||||||||||||||||
| Kazakhstan | % | 0.633% | 0.649% | 0.643% | 0.646% | 0.626% | ||||||||||||||||
| Kuwait | % | 0.269% | 0.297% | 0.306% | 0.273% | 0.298% | ||||||||||||||||
| Pakistan | % | 0.451% | 0.450% | 0.444% | 0.463% | 0.489% | ||||||||||||||||
| Saudi Arabia | % | 1.57% | 1.63% | 1.63% | 1.73% | 1.79% | ||||||||||||||||
| Syria | % | 0.178% | 0.138% | 0.111% | 0.093% | ... | ... | ... | ||||||||||||||
| Turkmenistan | % | 0.212% | 0.230% | 0.206% | 0.225% | 0.251% | ||||||||||||||||
| Uzbekistan | % | 0.314% | 0.305% | 0.297% | 0.308% | 0.327% |
Helgi Library 
