But you Australs are lucky that you don't have to deal with a polar vortex like we do. In fact, a circumpolar ocean current traps that one, which is why the Austral Winters are usually milder than the Boreal ones. On the other hand, here in the Northern Hemisphere, climate change is weakening the jet stream...
...(and air currents are already weaker than ocean ones in terms of how much they block/transfer heat), so the polar vortex is pretty much freed, because when the planet warms, the jet stream slows down. However, it DOES still warm the half of the year from late April to mid October, like you'd expect; the polar vortex only cools in late October to mid April.
Also, sorry if you don't know what Austral and Boreal is, but Boreal means Northern, and Austral means Southern. That's why the Northern Lights are called Aurora Borealis, the Southern Lights Aurora Australis, and why Australia was named Australia (as a continent, before it was a country or British colony).
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