Wales

Government will use new powers to improve energy efficiency of offices and homes

Committee on Climate Change reveals Wales made "significant progress" on waste and insulation

Second quarter of 2011 saw green generation contribute 9.6 per cent of the UK's electricity supply, a 50 per cent rise on 2010

Principality to join Edinburgh, Leeds, Manchester and Peterborough in battle to host bank headquarters

299MW facility owned by Rio Tinto and Kaiser Aluminum could require £600m investment

Venture capital trust and Infinite Energy will install turbine to help cut Redlands Monier's emissions

A 30 per cent decrease in greenhouse gas emissions north of the border outstrips English, Welsh and Northern Irish efforts

Swansea University leads £12m initiative to create best practice guidelines for investors in next-generation biofuels