I saw a documentary on YouTube about boats leaking into industrial oil into oceans far from land instead of disposing them properly via hazmat. And this was don

I saw a documentary on YouTube about boats leaking into industrial oil into oceans far from land instead of disposing them properly via hazmat. And this was done in bulk intentionally to avoid the cost of disposal. For the longest time a non profit was finding this on satellite images. But could not trace it until transponder data started appearing publicly. Came across the video through some random recommendation engine when I was not logged in. wont find it now.