Frozen soils could account for 39 per cent of global greenhouse gas emissions as temperatures rise, report warns

As summit kicks off, separate reports say rich nations are failing to meet climate funding commitments and the problem is likely to get worse

Brussels mulling court action over reduced VAT rate for energy efficient products

Ed Davey dismisses media claims Energy Bill will result in hefty hikes in energy costs for households and businesses

Even meeting emissions commitment will leave the planet far beyond internationally agreed limits, report finds

Government-backed task force says cost of carbon capture technology can be slashed by developing industry clusters

UN warns vulnerability to commodity price spikes can damage nations' balance of payments

Smart glazing technology could cut buildings' energy consumption by up to 30 per cent, says US giant

Planet is set for four degrees of warming by end of the century without radical decoupling of growth and carbon, report warns

From Tories running in circles over wind policy to an M&S milestone, we run down the top stories from the past week