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Washington's CO2 tax ends the year at about 43 cents a gallon, but increases are coming

Washington's new tax on CO2 emissions ended up adding about 43 cents per gallon of gas for 2023. The final price was reduced by several market interventions by Department of Ecology staff, but prices are likely to increase next year.

Ecology staff released the results from the fourth-quarter auction of CO2 emission allowances. The settlement price was $51.89, a significant drop from the previous a...