Dramatic changes in upper atmosphere are responsible for recent droughts and bushfires: new research

By Milton Speer, Visiting Fellow, School of Mathematical and Physical Sciences, University of Technology Sydney
Lance M Leslie, Professor, School of Mathematical And Physical Sciences, University of Technology Sydney

Over the past decade, southern Australia has suffered numerous extreme weather and climate events, such as record-breaking heatwaves, bushfires, two major droughts and even flash flooding.

While Australia has always had these disasters, our research reveals these new extremes are the result of dramatic climate-driven changes in the upper atmosphere above Australia.

Eight to ten kilometres above the ground, the fast-flowing jet stream air currents have shifted further southwards, dragging rain-bearing winter…

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