Study finds faulty well casings are the source of methane leaks in Texas and Pennsylvania
Celtique Energie suffers second blow in Sussex and accuses committee and planning officers of failing to take account of national interest
The scale of public disquiet over shale gas developments has again been highlighted, as a Guardian poll reveals widespread opposition to fracking in national parks
Environmental Protection Agency chief says decision on whether to bring in regulations will be taken this year
Breitling Energy's Telegraph advert 'misled the public'
Major new analysis reveals 38 per cent of world's shale gas and oil resources located in regions facing water stress
Preliminary findings suggest shale gas wells could be a factor in heart problems and low birth weights
Opposition party to table amendments to Lords infrastructure bill that would tighten rules for companies drilling for shale gas
Policy Exchange's Guy Newey argues technology tribalism is understandable but counter-productive, which is why we need a market-based approach to decarbonisation
Chemicals giant intends to become 'major player' in shale gas exploration after acquiring 51 per cent of 127 square mile licence area