Please read the accompanying article here.
It seems the polar vortex, the frigid cold, just like warming, drought, hurricanes, yada--yada are all caused by... wait for it... global warming!
Run! Run! Run! The apocalypse is upon us!
The article accompanying the video claims that this scientific explanation will "shut down all of the climate-change deniers".
There's a glitch in the argument, astute readers may have noticed. The truth vortex descending on the global warming argument presented by the folks in the video is that we've had polar vorticies and regional warming and droughts and hurricanes without any global warming for seventeen years!
Note to global warming frauds: pointing to extreme weather as as symptom of global warming only makes sense if there has been global warming.
If there hasn't been global warming, then pointing to extreme weather makes a powerful case against the view that global warming causes extreme weather, because we now know that extreme weather happens without warming. Thus, even if warming happens again (it will eventually, of course-- temperature always fluctuates), we won't be able to link it to warming because warmists have already shown us that extreme weather happens without warming.
You may be thinking to yourself-- "My goodness, this video was made at Yale. Could these people really be that stupid?"
No, they can't. No one is that stupid.
The video is a propaganda video, to push an ideological agenda and gin up funding.
They're not mistaken. They're lying.