CO2 Emissions Table
| CO2 Emissions (billion metric tons) | Year | Place |
|---|---|---|
| 6.0 | 2000 | United States |
| 4.5 | 2001 | United States |
| 5.0 | 2002 | United States |
| 5.2 | 2003 | United States |
| 5.4 | 2004 | United States |
| 5.6 | 2005 | United States |
| 5.8 | 2006 | United States |
| 6.0 | 2007 | United States |
| 6.2 | 2008 | United States |
| 6.0 | 2009 | United States |
| 5.8 | 2010 | United States |
| 5.7 | 2011 | United States |
| 5.5 | 2012 | United States |
| 5.4 | 2013 | United States |
| 5.3 | 2014 | United States |
| 5.2 | 2015 | United States |
| 5.1 | 2016 | United States |
| 5.0 | 2017 | United States |
| 4.9 | 2018 | United States |
| 4.8 | 2019 | United States |
| 4.7 | 2020 | United States |
| 4.6 | 2021 | United States |
| 4.5 | 2022 | United States |