Greenwire: Though the Obama administration was initially expected to issue stricter smog standards this summer, U.S. EPA now says it may not be ready to release a final rule until New Year’s Eve. EPA is currently reconsidering the George W. Bush-era changes to the National Ambient Air Quality Standards for ground-level ozone, which is the main component in smog. A final decision is now scheduled to come by Dec. 31, the agency told a federal court yesterday. “Completing this rulemaking has taken longer…