As the toxic legacy of opencast mining in Wales shows, operators get the profits, and the public get the costs | George Monbiot

Across the UK, fossil fuel companies' broken promises have left scarred and polluted landscapes, and no one held accountableWhen you're in a hole, keep digging. This is the strategy of opencast miners across the world: our past debts and future liabilities can one day be discharged if only we're allowed to dig a little deeper and extract a little more. And public authorities keep falling for it.The UK's biggest opencast coalmine, Ffos-y-Fran in south Wales, was granted permission in 2005 on the grounds that it would rehabilitate a hill, on the outskirts of Merthyr Tydfil, which had been made dangerous by the shafts and spoil heaps left by deep mining. It wasn't called a coalmine, but a "land reclamation scheme". If the reclaimers happened to stumble across 11m tonnes of coal while improving the land by digging a 400-hectare (1,000-acre) pit, 200 metres deep, who could blame them for taking it? Continue reading...