More methane may actually escape coal seam gas wells than first believed. Photo: Glenn Hunt AUSTRALIA'S coal seam gas industry could face future carbon tax liabilities of up to $4 billion a year if ''fugitive'' emissions of methane from unconventional gas production turn out to be substantially higher than expected. Three huge coal seam gas-to-LNG projects worth $60 billion are under construction in Queensland by BG Group, Origin Energy and Santos. Both BG and Santos have had multibillion-dollar cost blowouts...
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