Wales Online: CLIMATE activists have threatened to take "direct action" against coal mining corporations ahead of this year`s South Wales climate camp. The annual climate camps see large numbers of protesters meet at venues across Europe, with last year`s taking place near Ffos-y-fran in Merthyr Tydfil, the largest opencast coal mine in the UK. Protesters camped out near the Ffos-y-fran Opencast site for four days to raise climate change awareness and encourage sustainable …