UK shale gas explorers' shares fall on fracking moratorium

LONDON (Reuters) - Shares in British shale gas explorers fell on Monday morning after the government announced at the weekend that it is imposing a moratorium on fracking.On Saturday the government said that the gas extraction technique risked causing too much disruption to local communities through earth tremors.Fracking, which involves extracting gas from rocks by breaking them up with water and chemicals at high pressure, is fiercely opposed by environmentalists who say it is at odds with..