California OKs more than half a billion dollars to clean up freight trucks, trains, buses

By Mark Stevenson, Green Car Reports. 

California is using the growing sums of money it receives from its emission cap-and-trade auction for good, including to tackle up some of the state's most egregious transportation polluters.

In mid-December, California announced it would invest $663 million in a plan to clean up particularly dirty fleets, especially those operating in low-income and disadvantaged neighborhoods.

“This investment will continue to drive the market for new vehicle technologies," said California Air Resources Board chair Mary Nichols, "and put more ultra-clean and zero-emission trucks, buses and cars into the communities across California that need them the most."