A lot of garbage gets picked up by the current and deposited on beaches. A lot of mapping of the current happened when a container of Lego fell off a ship and washed to shore over decades. They have been talking about the Atlantic current collapsing due to climate change and the melting of Greenland glaciers. I wonder if less garbage correlates to less current.

Here’s an article about the Lego. It doesn’t talk about mapping, but I seem to remember reading that people were studying it. https://www.toronto.com/news/a-bit-of-nostalgia-rare-lego-piece-found-after-being-lost-in-atlantic-ocean-for/article_5ec3be6c-50ed-5129-84bb-e399299d862f.html

I love how you can just ask this question on Lemmy, and people give great replies. I do it often, and learn so much.