The Holocene, a period with relative stable
temperatures has ended. For thousands of years the global temperatures only were fluctuating for about one dregree.
Before that, the climate was more unstable, global temperatures changed more rapidly. Plus and minus ten degrees in
a decade were possible. It was the Holocene that enabled the human race to evolve and build it's civilizations.
We are now in the Anthropocene.
It is yet still open, which way temperatures will evolve.