Independent: A Supreme Court ruling this week could finally force the Government to drastically speed up its plans to deal with dangerous levels of air pollution, as a long-running battle over illegal levels of nitrogen dioxide comes to a head. The Department for Environment, Food and Rural Affairs (Defra) has been fighting a rear-guard action in the courts since 2011 over the Governments failure to meet EU targets for lowering nitrogen dioxide levels. In November, the case reached the European Court of Justice,...