EPA Administrator Lisa Jackson.Photo: Chesapeake Bay ProgramCross-posted from the Center for Progressive Reform. Last Friday, President Obama ordered EPA Administrator Lisa Jackson to withdraw EPA's new ambient air quality standard for ground level ozone (smog). The order came in a letter [PDF] from Cass Sunstein, the head of the Office of Information and Regulatory Affairs in the Office of Management and Budget.  The order does not pretend to be based on science. Indeed, it flies in the face of the available science on the human health effects of ozone as determined on at least two occasions by EPA's Clean Air Scientific Advisory …