Via @ProfTerryHughes - Coal from six biggest miners in Australia produces more emissions than entire economy - @adamlmorton @guardianeco #BoycottThePolluters #BoycottAustralia #BoycottOz #BoycottAustralianProducts #BoycottAustralianSheep #DontVisitAustral http://dlvr.it/RLCLsy