375 F.3d 537 SIERRA CLUB, Petitioner,v.ENVIRONMENTAL PROTECTION AGENCY, Respondent.Intervening Respondents: State of Illinois; State of Missouri No. 03-2839. No. 03-3329. United States Court of Appeals, Seventh Circuit. Argued June 1, 2004. Decided July 6, 2004. Douglas R. Williams (argued), St. Louis University, Kathleen G. Henry, Bruce A. Morrison, Great Rivers Environment Law Center, St. Louis, […]