USA

Who else is making progress on renewable energy? Wal-Mart, Whole Foods, the city of Houston and more

President reasserts commitment to comprehensive action on climate change, but angers green groups with pledge to boost fossil fuel infrastructure

Leading trading powers use Davos Summit to quietly assert commitment to begin work on green trade negotiations

Search giant to buy energy from four Swedish wind farms to help power data centres

Private sector partners and creative financing are accelerating the military's quest to slash energy intensity and increase the use of clean tech

Republicans and environmental groups both take aim at White House's environmental strategy, albeit for very different reasons

Republicans reject calls for tougher chemical regulations, despite latest toxic spill

Bloomberg New Energy Finance figures reveal global investment topped $250bn in 2013, but still fell 12 per cent year-on-year

Shift towards gas and renewables stalls, with carbon intensive coal making modest recovery

Governor Cuomo's latest State of the State address includes plan to reduce "soft costs" of solar power for schools