The Guardian reports:
"Using shale gas instead of coal does nothing to help the climate, one of the biggest investors in gas has said, because shale gas companies are failing to use simple technology to fix leaks of a potent greenhouse gas."
"Switching from coal to shale gas is supposed to help reduce greenhouse gas emissions, because gas produces less carbon than coal when burned. The difference in emissions has been the chief basis for claims by the gas industry that this new form of gas represents a "green" shift that will help to tackle climate change."
"But at present these savings do not exist, according to an authoritative study by Scottish Widows Investment Partnership, a major financial investor in fossil fuels. It would take two or three decades for shale gas to make a genuine dent in greenhouse gas emissions, as large amounts of coal power went offline, the analysis found."