USA

NRDC report finds 40 per cent of food produced in the US is never eaten, wasting $165bn of mostly edible food a year

Solar Energy Industries Association says Chinese firms should create fund for US companies in return for Washington removing import levies

New regulations based on US Clean Air Act welcomed by green groups but strongly criticised by coal industry

New report finds extreme weather is top of the list of risks driving companies into climate action

EPA asserted authority to move forward without new laws from Congress at hearing where contrarian views were on display

Search giant signs power purchase agreement with Chermac Energy's 240MW Happy Hereford project in Texas

Report finds 13 Western State produced almost a third of their energy from renewable sources compared to an eighth nationally

US hails new deal to phase out potent hydrofluorocarbon greenhouse gases as Poland sets out its ambitions for Warsaw climate summit

New research suggests economies of scale, rather than low labour costs and controversial subsidies, are the main reason behind China's solar manufacturing triumph

Latest wave of contractors announced for military's $7bn renewable energy push