5. Tennessee
> 1-yr. change in energy-related carbon dioxide emissions: +11.2% (+9.4 million metric tons)
> 5-yr. change in energy-related carbon dioxide emissions: -4.9% (-4.7 million metric tons)
> Energy-related carbon dioxide emissions in 2021: 13.3 metric tons per person – 22nd lowest (92.7 million metric tons total)
> Energy-related carbon dioxide emissions in 2020: 12.0 metric tons per person – 21st lowest (83.3 million metric tons total)
4. Iowa
> 1-yr. change in energy-related carbon dioxide emissions: +11.4% (+7.5 million metric tons)
> 5-yr. change in energy-related carbon dioxide emissions: -4.1% (-3.2 million metric tons)
> Energy-related carbon dioxide emissions in 2021: 22.9 metric tons per person – 10th highest (73.1 million metric tons total)
> Energy-related carbon dioxide emissions in 2020: 20.6 metric tons per person – 14th highest (65.7 million metric tons total)
3. Arkansas
> 1-yr. change in energy-related carbon dioxide emissions: +13.3% (+7.3 million metric tons)
> 5-yr. change in energy-related carbon dioxide emissions: -3.4% (-2.2 million metric tons)
> Energy-related carbon dioxide emissions in 2021: 20.5 metric tons per person – 16th highest (62.0 million metric tons total)
> Energy-related carbon dioxide emissions in 2020: 18.2 metric tons per person – 17th highest (54.7 million metric tons total)
2. West Virginia
> 1-yr. change in energy-related carbon dioxide emissions: +14.9% (+11.5 million metric tons)
> 5-yr. change in energy-related carbon dioxide emissions: -2.7% (-2.4 million metric tons)
> Energy-related carbon dioxide emissions in 2021: 49.5 metric tons per person – 4th highest (88.4 million metric tons total)
> Energy-related carbon dioxide emissions in 2020: 43.0 metric tons per person – 4th highest (76.9 million metric tons total)
1. Hawaii
> 1-yr. change in energy-related carbon dioxide emissions: +16.2% (+2.4 million metric tons)
> 5-yr. change in energy-related carbon dioxide emissions: -15.1% (-3.1 million metric tons)
> Energy-related carbon dioxide emissions in 2021: 12.0 metric tons per person – 19th lowest (17.3 million metric tons total)
> Energy-related carbon dioxide emissions in 2020: 10.3 metric tons per person – 15th lowest (14.9 million metric tons total)