Yes I know all about winter fog as I used to live there But not still for several weeks I can assure you that - several days perhaps. The unresolved issue with fracking is twofold - firstly it is not guaranteed to be safe enough either during or once the operation has left site - still too many unanswered questions and problems - and secondly all fossil feels are finite - what are we going to do with our current supplies when they suddenly run out? we need to diversify now - including ways of reducing as far as we can our energy consumption. There is a much wider debate and issue which the OP did not mention - hmmm....🤫