Oil Firms Break Promise on Biofuels as Chevron Defies California nation rule ordering reduced carbon emissions from cars and trucks

SAN FRANCISCO – Chevron Corp. helped write the first-in-the-nation rule ordering reduced carbon emissions from cars and trucks. Its biofuels chief spoke at the ceremony where California Governor Arnold Schwarzenegger signed the executive order in 2007, the same year the oil company...Oil Firms Break Promise on Biofuels as Chevron Defies California nation rule ordering reduced carbon emissions from cars and trucks