The saline current from the Arctic becomes stronger as cold water from the North Atlantic sucks into it. I've never seen this, but it probably confirms that the water is very saline. It plunges to the bottom of the Atlantic and is responsible for the currents changing there. The current formed when the Pacific heat changed after the El Nino of 2016-17. It wasn't there before. It has destroyed the Gulf Stream, and the UK is having a fun winter.
The mid-Atlantic current continues to divert to the south.
A super warm spot has appeared off Brazil, and I've never seen this.
The Pacific has completely stopped the upper return current. I'm looking at the Alaskan cold water. I'm expecting it to drift down and destroy the beginning of the Pacific westerly warm current. But that might be for another year.
The current shifts are dramatic. For years, I watched this, and nothing happened. The currents are the prime energy shifts of the heat balance of the world. Probably a million times that of air, so the notion that carbon warming affects them is cute.