4. Seattle
Greenhouse Gas Emissions (metric tons of CO2 equivalent): 34,498,586
Greenhouse Gas Emissions per Capita (metric tons of CO2 equivalent): 9.4
Driving Alone to Work: 67 percent
Sustainability Score: 76
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Greenhouse Gas Emissions (metric tons of CO2 equivalent): 34,498,586
Greenhouse Gas Emissions per Capita (metric tons of CO2 equivalent): 9.4
Driving Alone to Work: 67 percent
Sustainability Score: 76