The Polar Vortex, In The Southern Hemisphere; A Sign Of Global Cooling?

Interesting news fairly recently came out about what might be some impressive cold temperatures in Australia. Even though the statements in the article might initially not sound impressive, keep in mind that it's June, which is the first month of winter in the southern hemisphere. Is this a sign of climate change somehow? After all, it's been a mild year (relatively cold) so far here where I am. I've recently started watching the YouTube channel called "Adapt 2030". I don't know if they've mentioned the fact that there was significant snow in Sicily (where?!). Yeah, that's right, snow in Sicily! I have never been there but I know that it's probably a subtropical climate there. So do you ever think about the climate? If so, do you think that climate change is real. And if so, is it natural or not? Cooling, warming, or maybe various changes at the same time?