Energy Exchange

A white paper by the Gas Technology Institute’s Center for Methane Research is drawing attention in industry circles for arguing that methane emissions from the oil and gas sector have a much smaller impact on the global climate than virtually every other generally accepted scientific estimate.

That would be huge news if it were true. But unfortunately, the conclusion is rendered completely moot by a compounding series of fundamental errors. In fact, had the authors done their math accurately, their results would have been very much in line with mainstream research which shows that human-caused methane emissions are responsible for a quarter of the worldwide warming we’re experiencing today.

We can’t say whether the erroneous calculations were intentional or not. It’s worth noting, however, that EDF pointed out these mistakes to GTI staff when our scientists were asked to comment on a pre-publication draft. We will explain them again here, showing where the authors went wrong and what the numbers look like when they correctly reflect the underlying physics and chemistry.

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Methane (CH4) Molecule

It’s long been known that methane is a major contributor to global warming, responsible for roughly a quarter of the warming we’re experiencing today and second only to carbon dioxide in its impact on the current climate.

But research suggests methane has an even more potent warming effect on the climate than scientists previously thought.

For example, a study in Geophysical Research Letters significantly revises estimates of the energy trapped by methane by including its previously-neglected absorption of near-infrared radiation (past research included only infrared absorption—a different part of the radiation spectrum).

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