Industry Challenges Study That Natural Gas Fracking Adds Excessively To Greenhouse Effect
By Richard Lovett of Nature magazineIn the calculus of global warming, natural gas is generally considered to be preferable to coal as a fuel. That’s because, on a per-joule basis, burning methane, the primary constituent of natural gas, produces less carbon dioxide than burning coal.But, earlier this week, the conventional wisdom was shaken by researchers from Cornell University in Ithaca, New York, who argue in a study to be published in Climate Change that, over a 20-year period, the use of natural gas extracted from ‘gas shales’, porous rocks that hold the gas in minute pockets throughout the rock, could be worse for the climate than coal....