California has cleaned up its air.
In 2016, California’s greenhouse gas emissions were lower than in 1990, despite a larger population and booming economy, the state’s air resources board reported. Emissions in 1990 were 431 million metric tons and they were 429.4 million metric tons in 2016.
The savings relative to the peak in 2004 are equivalent to taking 12 million cars off the road. The state only has a total of 14 million registered vehicles.
