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Coal Greens Love Buoyed by Shale Gas Hydraulic Fracking

The world’s most abundant fossil fuel could be tapped without moving mountains, delivered without trucks or trains and burned without greenhouse-gas emissions.

The technology to make this possible has been around for decades. Underground coal gasification was pioneered by Sir William Siemens in the 1860s to light London’s streets. Vladimir Lenin hailed the method in a 1913 article in Pravda for its potential to rescue Russians from hazards of underground mines.