In 2011, a Cornell University research team first made the groundbreaking discovery that leaking methane from the shale gas fracking boom could make burning fracked gas worse for the climate than coal.

In a sobering lecture released this month, a member of that team, Dr. Anthony Ingraffea, Professor of Engineering Emeritus at Cornell University, outlined more precisely the role U.S. fracking is playing in changing the world’s climate.

The most recent climate data suggests that the world is on track to cross the two degrees of warming threshold set in the Paris accord in just 10 to 15 years, says Ingraffea in a 13-minute lecture titled “Shale Gas: The Technological Gamble That Should Not Have Been Taken,” which was posted online on April 4.

That’s if American energy policy follows the track predicted by the U.S. Energy Information Administration, which expects 1 million natural gas wells will be producing gas in the U.S. in 2050, up from roughly 100,000 today.

The Difference of a Half Degree 

An average global temperature increase of 2° Celsius (3.6° Fahrenheit) will bring catastrophic changes — even as compared against a change of 1.5° C (2.7° F). “Heat waves would last around a third longer, rain storms would be about a third more intense, the increase in sea level would be approximately that much higher and the percentage of tropical coral reefs at risk of severe degradation would be roughly that much greater,” with just that half-degree difference, NASA‘s Jet Propulsion Laboratory explained in a 2016 post about climate change.

A draft report from the Intergovernmental Panel on Climate Change (IPCC), which was leaked this January, concludes that it’s “extremely unlikely” that the world will keep to a 1.5° change, estimating that the world will cross that threshold in roughly 20 years, somewhat slower than Ingraffea’s presentation concludes.

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