This March 9, 2010 file photo shows a tanker truck passing the Chevron oil refinery in Richmond, Calif. It’s one of many industrial operations that are affected by the state’s cap-and-trade system of issuing and auctioning carbon dioxide emission allowances.
This March 9, 2010 file photo shows a tanker truck passing the Chevron oil refinery in Richmond, Calif. It’s one of many industrial operations that are affected by the state’s cap-and-trade system of issuing and auctioning carbon dioxide emission allowances. Paul Sakuma Associated Press file
This March 9, 2010 file photo shows a tanker truck passing the Chevron oil refinery in Richmond, Calif. It’s one of many industrial operations that are affected by the state’s cap-and-trade system of issuing and auctioning carbon dioxide emission allowances. Paul Sakuma Associated Press file