I think this Tuesday's episode was a change to the published schedules so just to make sure it doesn't go unheard... http://www.bbc.co.uk/programmes/b036tz9t The Long View: Shale gas and UK energy resources "Today the government and Gas extraction companies are taking stock after the publication of a report by the British Geological Survey of the potential of larger than expected Shale Gas reserves in the Bowland Basin - an area covering most of Lancashire and Yorkshire. IN the early 19th century, with the help of new mining technology including steam powered machinery, it became increasingly clear that the Yorkshire coalfield stretched far further East than was first thought. Huge new seams were being discovered, particularly in the Barnsley area, as shafts were sunk in the area east of Wakefield, Rotherham and Sheffield. Back then the new reserves created a series of challenges and risks for the mining organisations wealthy enough to take the risks. Subsidence and firedamp were a fact of mining life. But in the space of half a century the relatively limited Yorkshire field outstripped the rest of the UK's coalmining production and in the process created huge population centres in what had been sparsely populated farming country." regards John A W Lock If you need to leave the list, send the following message to [log in to unmask] - leave mining-history ---------