"Scientists are finding that as temperatures in the arctic rise, changes here may be contributing to extreme weather thousands of miles away."

keyword: may. This statement tells us nothing new. Everyone already knows that local changes in climate have global effects. That's why we have global climate models.

(cue: extreme forest fires, partly caused by mismanagement of forests)

"Temperatures are rising in the world, but the warming is strongest in the arctic."

Nothing new.

"Here the warming is twice as fast as the global average."

Interesting: we know that the polar jet has been slowing since the 60's, but the warming of the arctic seems to be equal to global warming in the first part of this graph. Also, very shoddy time-series analysis, imho.

"And that's causing the ice to vanish."

"...international group of researchers who've come North to see how it has been rapidly changing."

So here I really wonder. Why would you do that? We've got great sensor networks and satellite measurements.

"Without the ice, more water evaporates, contributing to more greenhouse gasses."

True, but locally. Increased cloud cover also has a net negative effect. It really depends on a complex interplay and requires a sophisticated simulation.

"Some scientists think this is supercharging extreme weather across the world."

This seems highly hypothetical. Why not make a factual claim, such as: "Scientists have proven this actively contributes to the number of extreme weather events."

"Call atmospheric scientist... who explains how the polar jet stream effected the US this past winter."

"There was a huge northward swing in the jet stream over the west coast, bringing lots of warm air over Alaska."

So, this is true, but the jet streams are not constant, and have never been. Connecting it with a slowing down of that stream is intentionally left to the viewer.

... news report ...

"Took a southward drive over the rockies and dipped way down into Florida."

... another news report, claiming that such events have happened in the past??? Wouldn't that debunk this line of thinking? ...

"At times 20 degrees above average, and warmer than NY city."

These local fluxes of temperature are normal in this region.

... more claims of the jet stream, causing problems. No scientific claims, however, just news reporting. ...

"Tokyo had its coldest day in 48 years." So what happened about 48 years ago?

"Some prominent climate researchers are skeptical."

Good for them. We'd better be.

"Scientists can't definitively say whether any one weather event was caused by the warming Arctic, conditions elsewhere, or by random chance."

So, this is one of two scientific claims. At this point I am wondering why I just watched 4 minutes of melting ice bergs.

"But Francis and others think the warming Arctic is loading the dice for extreme weather."

Think? What does that mean? They don't agree with the other scientists? Have they found proof?

"FRANCIS: We can confidently say that some amount of the increase in extreme weather that we're seeing, is because of climate change."

So... eh, what about the jet stream? The arctic? I agree with this statement, because... it is obviously true! When global temperatures rise, we obviously get more droughts and more extreme temperatures.

KINTICH: "One thing is for sure, extreme weather in North America is occurring more often."

And the relationship to the Arctic? The jet stream? Tell me more!

"Climate scientists have given this phenomenon a new name: cold arctic, warm continents."

But, this has always been the case! This does not automatically prove the opposite.

... summary ...

So my conclusion: nothing new has been said! The only true statement is that we cannot conclude anything yet.

Now, multiply these kind of videos by hundreds, and you might start to understand why certain people are getting tired. Stick to the facts! The facts are scary enough as they stand.