Recently the peer-reviewed scientific journal Nature published a ‘pros vs. cons’ piece on the production of unconventional gas from shale. The tête-à-tête, led by Terry Engelder on the pro side and Robert Howarth and Anthony Ingraffea on the con side, weighs the risks and benefits of gas production as it relates to the economy and human and environmental health.
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Howarth and Ingraffea, authors of the first peer-reviewed study on lifecycle emissions from unconventional gas production, are solemn in their assessment: “shale gas isn’t clean, and shouldn’t be used as a bridge fuel” to a clean energy future. Their recommendation is based on the risks involved with high-volume slick-water hydraulic fracturing, or fracking, as it exists in its present form.
Although the industry claims to have performed over one million fracking operations since the 1940s, Howarth and Ingraffea counter that the current technology is still relatively new and has only been in operation for a decade. Modern fracking bears little resemblance to its historic counterpart and requires greater amounts of water and chemicals, deeper drilling and higher pressures. All these differences combine to make fracking an unavoidably dangerous process. Howarth and Ingraffea also claim that a switch to unconventional gas will not substantially alleviate global warming in the near future.