A federal judge has slammed the Environmental Protection Agency, threatening to hold the agency in contempt of court for failing to curb nutrient pollution in the Florida Everglades. Judge Alan Gold of the Southern District of Florida on April 15 ordered EPA to establish specific milestones to ensure Florida reduces phosphorus to levels mandated by the Clean Water Act. The judge also suspended the state of Florida’s power to issue new water-pollution discharge permits and required EPA Administrator Lisa Jackson to appear in person before the court in October to provide a progress report. EPA says it is reviewing the
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.