Calm down, Bill, there's no climate emergency. The modest (less than a degree) spike in ocean temperatures is a predictable consequence of new IMO 2020 international shipping regulations, which curtailed sulfate aerosol emissions from ships.
https://sealevel.info/learnmore.html
The new regs resulted in "an estimated 46% decrease in ship-emitted aerosols," and (because ships are a major contributor), a 10% decrease in total global sulphur dioxide (SO2) emissions. To learn more about it search for articles with titles like these:
● Global reduction in ship-tracks from sulfur regulations for shipping fuel
● NASA Study Finds Evidence That Fuel Regulation Reduced Air Pollution from Shipping
● Low-sulfur shipping rules are affecting global warming
It's not a problem, it's good news, because it is evidence that the pollution controls are working.
It has nothing to do with carbon emissions, and it doesn't mean you need to scrap your SUV or freeze in the dark to "save the planet."