Manufacturer of plug-in hybrid sports car secures fresh funding to take stake in battery supplier

New technique inspired by coffee stains could cut cost of energy-efficient LCD and plasma TVs

Lib Dems urge government to use controlling stake in banks to force them to disclose the carbon impact of their investments

Surveys show a sizeable chunk of shoppers will buy green no matter the economic climate, but there are a few tools retailers can use to encourage customers to shop for the greenest products

Concerns over legality of alcohol-based fuels under Islamic law could dampen interest in biofuels in Muslim countries

Democratic leaders outline proposals to stop using coal at Washington DC's symbolic power plant

Interactive map of 12 states offers bird's eye view of renewable energy and energy efficiency firms

Ministers proposing one of the world's largest "polluter pays" schemes

Building overhaul and green transport schemes have saved £200,000 a year