The California legislature took a major step Tuesday to more than double the state’s greenhouse gas cuts signed into law under former Republican Gov. Arnold Schwarzenegger.

The bill, which passed 42-19, ratchets up the carbon pollution cuts from 15 to 40 percent, but changes the timing for reaching the goal from 2020 to 2030. The bill passed by one vote over the threshold required for legislation to pass in the Assembly. It faced substantial Republican opposition labeling it a business and job killer.