US methane spike coincides with fracking boom, says Harvard study

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A research study from Harvard University showing that there has been a spike in methane emissions in the US coinciding with the growth of the fracking industry has been published in the Geophysical Research Letters journal.

The study demonstrates that, since 2002, man-made methane emissions have increased by over 30%. Methane is a significant greenhouse gas with a warming effect of 86 times that of carbon dioxide over a twenty year period. Concerns over leakages of methane has led to President Obama insisting that the oil and gas industry halve methane emissions within the next decade.