About halfway through the warming at the end of the last ice age there was a return to cooling followed by a rebound to previous warming conditions. It was most pronounced in northwest Europe, Greenland, and northeast north America. That's where you see the rapid 7C warming. Other parts of the planet were doing the opposite in a see saw fashion. The younger dryas is visible in the global temperature record, but it isn't as pronounced as proxies in those local areas.

It looks like a small hiccup in the middle of the warming. After the warming at the end of the younger dryas the planet was basically at the temperatures it would be for the entire 10,000 year holocene period. Which we are now above.