PHILADELPHIA, Pennsylvania, May 4 -- Earthjustice issued the following news release: The Third Circuit Federal Court of Appeals in Philadelphia upheld the Environmental Protection Agency's smog-reduction plan for Pennsylvania, denying a challenge from the operator of the Keystone and Conemaugh coal-fired power plants. This decision, affirming the ability of EPA to protect Pennsylvanians who suffer from unsafe levels of ground level ozone, or smog, is a major victory for public health. The EPA's  more