Reuters: New York state is expected to sell carbon credits in the United States’ second greenhouse gas auction, which is scheduled for Dec. 17, after a state agency approved final rules on Monday. The Regional Greenhouse Gas Initiative, a group of 10 northeast and mid-Atlantic states that formed the first U.S. carbon market in an attempt to slow global warming, will hold its first carbon credit auction on Sept. 25. New York, which founded RGGI under previous governor George Pataki, did …