If the weather involves absolute ******* freezing weather the likes of which we haven't seen for 65 years, then the GlowBull Warmer consensus crowd (it's a FAITH!) point to it as "proof" of GlowBull Warmering.
Of course, if, we are later in the midst of a summer heat wave or drought or hurricane, then the GlowBull Warmerer Faithists will proclaim THAT is also "proof" of man-caused GlowBull Warmerererering.
Logically, it is very likely that we will be in periods of either increased heat or increased drought or increased storms or decreased heat.
Therefore, per the "logic" of the GlowBull Warmererists, the fault lies with humankind. FAITHERS put the "A" in "AGW."
It may be non-falsifiable and, therefore, demonstrably non-scientific, but that's ok. Because?
Class? Bueller?
That's right. Because -- CONSENSUS!
Consider it an article of faith.
Well, from different things that I've read, they say that what happens during global warming is that the polar ice caps melt, which in turn plays havoc with the weather in general.

That has always been my understanding of it anyway. This I gleaned from different articles by climatologists that I've read.
The correct answer is:
if it gets "hot," then it's obviously AGW!
but if it gets "Cold," then that's just a paradoxical effect of AGW.
And surely it will usually get hotter or colder and therefore --
AGW!!!!
No, that is not it at all. It is that the ice caps melt, which in turn cools the ocean, which in turn creates terrible storms, from hurricanes to blizzards. Hey, I'm not a scientist. These are just things that I've read about global warming.
There has never been a period in Earths history where these things have not happened. Google ANY year you wish and add storm to the search. You will find that nothing is different now than back in the past. Well, that's not exactly true. The worst storms that man has experienced were in the past. In 1862 there was a storm that lasted for 4 weeks and flooded California's central valley. That whole area in blue that you see on the map below was under water. Sacramento figured out the only way to deal with it was to raise the city. So that's what they did.
There has not been a storm like that in the US since. But there will be another.....and it won't have the slightest thing to do with man.
"The Pacific slope has been visited by the most disastrous flood that has occurred since its settlement by white men. From Sacramento northward to the Columbia River, in California, Nevada Territory, and Oregon, all the streams have risen to a great height, flooded the valleys, [inundated towns, swept away mills, dams, flumes, houses, fences, domestic animals, ruined fields and effected damage, estimated at $10,000,000. All Sacramento City, save a small part of one street, part of Marysville, part of Santa Rosa, part of Auburn, part of Sonora, part of Nevada, and part of Napa, not to speak of less important towns, were under water.
The rainy season commenced on the 8th of November, and for four weeks, with scarcely any intermission, the rain continued to fall very gently in San Francisco, but in heavy showers in the interior. According to the statement of a Grass Valley paper, nine inches of rain fell there in thirty-six hours on the 7th and 8th inst. Whether, it is possible that so much rain could fall in thirty-six hours I will not decide; but it is certain that, the amount was great, for the next day the river-beds were full almost to the hilltops. The North Fork of the American River at Auburn rose thirty-five feet, and in many other mountain streams the rise was almost as great. On the 9th the flood reached the low land of the Sacramento Valley. "
THE GREAT FLOOD IN CALIFORNIA. - Great Destruction of Property Damage 10 000 000. - NYTimes.com