Could a Pigouvian tax help solve climate change? Back in 2019, an unprecedented group of thousands of economists signed a public letter in favor of a carbon tax as the best solution to climate change.

Revenues from the state's carbon emissions auction will be used for high speed rail, wildfire suppression and legislators' discretionary spending.

Washington’s cap-and-trade tax on fossil fuel has reached a record high, as the state threatens to overtake California for the distinction of having the highest gasoline prices in the country.