Climate Central: Methane leaks in natural gas pipelines have long been a concern with the shale gas and fracking boom in Pennsylvania, Colorado and elsewhere. A new study shows methane leaks are also a hazard in major U.S. cities, posing an explosion risk and a threat to the climate.
Nearly 5,900 methane and other gas leaks have been found in ageing natural gas pipelines in Washington, D.C., where some manholes were found to have methane levels 10 times the threshold for an explosion, according to the study conducted...