Oceans heating up faster than we thought:, page-18

OK, you try to explain that phrase:

"and recommended lifting estimates of ocean heat content by between 48 and 152 per cent."

Hints: Start with the volume of the ocean. Then apply the specific heat content to it at an average of, say 2C. That'll give you the heat content. Then double the heat content, and see what temperature that gives you.

Utterly clueless.