It Didn't Say That
The article also says there's nothing we can do to stop this from happening:On the other hand, the article itself says:
The change appears to be driven largely by feedback-enhanced global climate warming, and there seem to be few, if any, processes or feedbacks within the Arctic system that are capable of altering the trajectory toward this “super interglacial” state.In other words, it could be changed from outside … by nuclear winter, for example.
Upon looking at the article, I noticed that the diagram in Figure 2 did not show any strong links between sea ice and terrestrial ice. There is no good reason to assume that eliminating one will eliminate the other.