Yesterday’s decision by the Obama administration to put a moratorium on drilling in the eastern Gulf of Mexico further intensifies the current debate about hydraulic fracturing, the controversial process by which much of the unconventional gas is being exploited in the US.
The process has been at the centre of the most recent argument between the oil and gas industry and environmentalists since Gasland was released earlier this year, highlighting the effect of some of the chemicals used in extraction. But the argument has gathered pace in the last few days, not least because of the announcement by Ken Salazar (pictured) that he would consider tightening up rules so that companies have to disclose what chemicals are being used to extract the gas.



