It means, the society is on the road to recovery from the politically motivated garbage that is anthropogenic warming. The climate is 100 percent natural 100 percent of the time.
Most recently, the LIE that the ocean depths were “hiding” the warming was revived by the global warming demagogues. That particular bogus claim was actually studied a decade or so ago, and it was found, not surprisingly, that the oceans not only weren’t warming at depth, they got colder and more briny with depth, you know, exactly in accordance with actual physics, rather than the imaginary kind spewed out by leftists. The oceans can’t warm at depth, unless there’s a volcano right there, and that’s a spot source. That hasn’t stopped the global warming LIARS from trotting that out again. They do that because they are LIARS.
The Paris agreement isn’t a worldwide agreement, it’s a political document that isn’t based on science in any way, shape, or form. We will have more influence if we tell the other signatories to shove it up their asses, and can do that just fine from outside.
I had not heard anything about the ocean depths “hiding” the warming. However, my understanding is that a possible danger of surface warming is that if arctic ocean freezing is reduced, then there will be less fresh water taken out of the ocean as ice and therefore less more briny water to sink to the bottom and maintain the Gulf Stream circulation. If the Gulf Stream circulation fails, England and northern Europe would be in big trouble. Notice, I said “if”; at any rate, something to keep an eye on.