But green groups warn that an expansion of natural gas could limit the growth of renewables and fail to achieve climate targets
International Energy Agency says CO2 emissions reached 31.6 Gt in 2011, as UN chief warns talks are stalling ahead of Rio+20 summit
International Energy Agency says UK is one of the only countries moving forward with carbon capture and storage plans
Ministers attending clean energy summit in London to be warned about continuing global addiction to fossil fuels
Birol: "We will see higher CO2 levels if we take out one of the major technologies that will help us deal with climate change"
Agency predicts deficits will could lead to slower growth for renewables as UN urges private sector to back new energy goals
Bloomberg New Energy Finance says milestone was reached in last two weeks of November
New book argues renewables on track to become cost competitive with fossil fuels in coming years
World is heading down an 'insecure, inefficient and high-carbon' path, international body warns
If fossil fuel infrastructure is not rapidly changed, the world will 'lose for ever' the chance to avoid dangerous climate change