Hydraulic fracturing technology, called fracking, has been around since the 1940s but has recently gained attention as the energy industry expanded cleaner natural gas production.

The inaugural Energy Census from business intelligence company Polecat says it is a big topic, with energy writers noting that CO2 emissions from energy have plummeted and coal emissions have gone even farther back in time, to the days of the first Reagan administration. Meanwhile, detractors claim it causes headaches and cancer (cancer has been the go-to disease for everything since Rachel Carson made up a scare about DDT 50 years ago) and even that it could cause the earth to deflate.

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