USA

Stern: 'Of course, the US continues to support this goal; we have not changed our policy'

Defense and Interior departments seek to install solar, wind and geothermal projects on military lands

Climate change envoy Todd Stern makes case for a more 'flexible' global treaty that ditches the binding target to limit average temperature rises to two degrees

Representative Jim McDermott seeks to revive carbon pricing debate with plan for deficit-tackling emissions levy

From unswitched fish to Olympic wind turbines, we run down the top stories from the past seven days

Obama administration under growing pressure to end support for corn ethanol as gas and food prices continue to rise

New figures reveal mild winter and switching from coal to gas resulted in eight per cent drop in first quarter emissions

Washington D.C meeting ends with commitment to try and deliver an international mechanism for tackling aviation emissions

Mitt Romney’s campaign confirms GOP's presumptive presidential nominee wants to kill off wind farm tax credits

Key Senate Committee approves controversial bill that could block US airlines from complying with EU regulations