The phenomenon is extremely rare in the southern hemisphere and most recently occurred in 2019 when it contributed to a worsening of the Black Summer bushfiresFollow our Australia news live blog for latest updatesGet our breaking news email, free app or daily news podcastA rare rise in stratospheric temperatures over Antarctica could influence weather into summer, with previous events driving hotter and drier conditions for south-east Australia.The phenomenon – called sudden stratospheric warming – is extremely unusual in the southern hemisphere. It only previously occurred in 2002 and 2019, the latter contributing to a worsening of the Black Summer bushfires. Continue reading…