Yuuup. A few years ago, when the entire United States was experiencing record lows, the Earth had an above average overall temperature. Imagine how hot everywhere other than the United States must have been, if the average was still higher despite our record lows.

Fun fact, when the jet stream gets perturbed like that and develops the sinusoidal deviations that we are experiencing, it's called a Rossby wave.

These waves are actually super normal as the jetstream shifts with the seasons and moves north/south, especially when in a La Niña phase of the ENSO, which we are in right now.

The Hadley circulation cells whose boundaries define the jet stream are driven by convection. The US lies right along a jetstream boundary between two cells, and just downwind from the pacific ocean, so our weather is particularly sensitive to the temperature differences across the pacific ocean.

El Niño patterns have a hot equatorial pacific ocean which drives significant convection on the southern cell of the jet stream crossing the US, stabilizing it. La Niña patterns have a smaller gradient between the temperatures in the cells to the north and south of the relevant jet stream, especially as climate change relatively warms the arctic faster, leading to higher amplitude destabilizations during La Niña patterns like we are experiencing now.

More fun facts about these Rossby waves: they have been proposed as the mechanism to drive the eddies that end up forming planets in protoplanetary disks around baby stars (see the wikipedia page for Rossby waves above), and as the mechanism behind the hexagonal shape of Saturn's polar cell. Worth noting that the exact mechanism for that hexagon is still highly debated, but Peter Gierasch used to have a fun model using a modified record turn table to create a rossby wave that formed a hexagon as a proof-of-concept that has stuck with me.

I liked the image of the Titanic nosing down into the water, and deniers up on the stern end saying, "If we're "sinking" how come we/re up so high?"

Because science, bitch!

That's science though, the people that don't believe it will not be convinced by smart people sharing their discoveries.

Honestly we are way past the point of any scientific reasoning. The public has voted that they are uninterested, and the US government and large corporations are about to be uninterested too.

To be blunt… No one ever really cared, but the world kinda squeaked by putting scientists in front of statesmen and public broadcasts. Everyone kinda nodded along, and not just for global warming.

That period is over.

Nothing will meaningfully improve until the rich fear for their lives

You need to convince them the Earth is a sphere first.

I'll distribute the leopards. If you're Republican or voted for the pile of shit, just see one of the leopards. Tell them to go back where they came from, they'll know what to do. They're trained, it only takes a second. Pretty painless during... I assume. Oh it's figurative speech? Never mind! I'll get the pumas back. It was pumas right? Ew, I think this one already ate a face. Sorry sorry...

From that picture it looks like the weak jet stream is the problem. We just need to build a ton of wind farms across Canada to blow it harder so that it becomes more powerful. Easy.

Good luck convincing the rubes that. Literally heard jokes about "global warming" today in the office. Had to say, well its climate change actually and wild shit means its not doing good.

Sounds too complicated to be true. Obvious explanation is Jewish Space Laser!

The graphic isn't all that accurate. The text says a colder period is because of a warmer planet but then the cold area from a meandering jet stream looks larger. The missing part is the warmer air that leaks into the polar areas, causing a feedback loop by further deteriorating the balance of cold and warm that drives the jet stream.

Last time that much fresh water got dumped in the Atlantic ocean (when the glacier over north america melted) it resulted in an ice age over Europe... So... Good luck guys 👍

It's just nature's hernia