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So much smoke has been generated by Australia’s bushfires it has created a plume the size of the continental United States. NASA tracked it as it circumnavigated the globe. Drought and record temperatures have created a giant tinder box. Shaun Ley speaks to Patrick Suckling who spent three years as Australia’s ambassador for the environment and believes the threat is all too real. But with politicians and voters still committed to exporting massive quantities of coal, was he wasting his time?