In Contrast to California, Washington Eyes Tougher, More Expensive Cap-and-Trade Program

California has the eighth-largest economy in the world, with gross domestic domestic product of $2.2 trillion in 2013. It had 483.3 million metric tons of carbon emissions statewide, but its cap-and-trade program, which forces polluters to pay to emit, is estimated to generate $850 million in 2014-15.