Karen Sullivan is a Port Townsend writer and poet, former ship captain, marine biologist, and spokesperson for a federal agency. She is a member of the Rainshadow Journal collective and is at work on a book. You can see her other work at https://karenlsullivan.com
Hotter now than they’ve ever been, the oceans have absorbed around 90 percent of the excess heat that humans have caused, but they can also give it back. One effect of a heated ocean surface is that it will stratify and not mix as much with colder layers below.