Global Warmings during Pliocene era

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception

Study Provides Evidence for Several Global Warmings During Pliocene era.
The Pliocene (also Pleiocene) Epoch (symbol P O) is the period in the geologic timescale that extends from 5.332 million to 2.588 million years before present.
http://www.sci-news.com/othersciences/paleoclimatology/science-global-warmings-pliocene-antarctica-01248.html