[JURIST] A judge for the US District Court for the District of Columbia [official website] ruled [opinion, PDF] Monday that the US Fish and Wildlife Service (FWS) [official website] is not obligated to reduce green house gas emissions, a contributor to global warming [JURIST news archive], in order to protect polar bears [FWS backgrounder]. However, the court also found that the controversial Bush-era special 4(d) rule [text, PDF] in question violated the National Environmental Protection Act [official website] by not…