Today America is not only the world’s biggest producer of gas; it is also the world’s biggest producer of crude oil, thanks entirely to the shale-fracking revolution. The Permian basin in Texas alone now produces as much oil as the whole of the United States did in 2008, and more than any OPEC country except Iran and Saudi Arabia. America was building huge gas import terminals in the early 2000s; these have now been converted into export terminals. Cheap gas has displaced coal in the country’s electricity sector, reducing its emissions faster than any other country. It has undermined OPEC and
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