If, as they say, good judgment comes from experience, and experience comes from bad judgment, Washington state has been steadily improving its judgment in the area of carbon pricing legislation. Grist has taken a long look at I-1631, a bill that would impose a fee of $15 per metric ton of CO2 starting in 2020. The fee would rise by $2 plus inflation each year until the state meets its climate goals. It might not be long before the Evergreen State will be able to claim a double meaning for its slogan.