Forbes: A new study released Tuesday suggests that the global oil and gas industries allow as much as 3.6 trillion cubic feet of natural gas and almost certainly far more to escape into the atmosphere annually. The leakage rate represents at least $30 billion in lost revenues, the analysis found, and it reinforces previous studies suggesting that the much-touted climate benefits of the expanding shale boom are unlikely to be realized unless these so-called fugitive emissions are brought under control....