Exclusive: The pro-fracking letter writers with links to oil and gas industry

In the search for alternative energy sources for the UK, there seemed to be one obvious place to look – underground. But according to one group of geo-scientists, getting access to the UK’s shale gas resource is at risk because of the rules governing fracking-induced earth tremors.

In a joint letter, 48 of them backed calls by the fracking industry for the regulations to be reviewed. But who exactly are the signatories? This programme has discovered that many of them have links to the oil and gas industry.