icWales: DEMONSTRATORS today claimed to have stopped work at an open-cast coal mine in a protest about climate change. The protesters chained themselves to excavation machinery at the site on the outskirts of Merthyr Tydfil in South Wales, as well as blocking one of the main entrances. The group said it was highlighting the "hypocrisy" of Government claims that ministers were taking climate change seriously. The demonstrators pointed out that coal has the biggest impact on …