Years ago I started a thread about octopuses vs. octopi. I still hear octopi and fungi on TV. That particular form of ignorance still needs fighting.
Let’s not derail this thread - is this the old thread you mean?
Yeah. I don’t want that thread zombied either. 
I fully support polar vortices. They send huge numbers of tourists to our beaches and bring the temps down to pleasant levels.
Coming Someday Soon.
I read that as meaning that the media has sometimes linked changes in the polar vortex to climate change, and sometimes misrepresented the scientific view, and that’s true, although I personally haven’t seen even the sensationalist popular media actually cite that as “proof” of climate change. That would be ridiculous since no one knows if the observed changes will be persistent or are just short-term randomness. I think it’s important to distinguish the mistakes and sensationalism of the popular media from the scientific view on these kinds of circulation changes – otherwise one is dealing with the frustratingly and misleadingly unattributable “they”, as in “they say that …”.
There are certainly hypothesized mechanisms by which a rapidly warming Arctic could lead to long-term systemic weakening of the polar vortex, but at this point that’s all they are: hypothesized mechanisms. Same for potential changes in El Nino. The earth has a large number of major ocean and atmospheric circulation systems that exhibit some form of cyclic variation, and to the extent that climate change is inducing rapid planetary warming but is doing so with vast differences in the distribution of its effects – differences between warming at different geographic locations, major systemic differences with latitude, differences between land and ocean, differences between shallow and deep ocean layers, differences between the lower and upper atmosphere, changes in ice and snow cover, and many others – it would be very surprising indeed if these circulation systems were somehow immune to these significant effects, and if they weren’t eventually affected in major ways.