Transportation Carbon Dioxide Emissions, Natural Gas for Washington was 0.71884 Mil. Metric Tons CO2 in January of 2021, according to the United States Federal Reserve. Historically, Transportation Carbon Dioxide Emissions, Natural Gas for Washington reached a record high of 0.77915 in January of 2018 and a record low of 0.08595 in January of 1983. Trading Economics provides the current actual value, an historical data chart and related indicators for Transportation Carbon Dioxide Emissions, Natural Gas for Washington - last updated from the United States Federal Reserve on April of 2024.