D'oh , some people will seek any straw context free comment in the land, to avoid facing the reality, the real world is warming, as man made fossil fuel CO2 levels climb above 393 ppm and O2 levels fall accordingly.
A Summary of the actual paper :-
"Antarctic glaciation occurred during a geologic period called the Eocene to Oligocene climate transition.
"It was a time of dramatic changes triggered during a cold orbital cycle when precession of the Earth's axis and changes in its orbit aligned to make southern hemisphere summers colder," says Sijp.
"This allowed ice sheets to survive year round and gradually increase in altitude as fresh snow and ice was added. As the altitude increased, the surrounding air got colder, which further aided in cooling, creating a positive feedback loop."
"At the same time continental drift ... allowed the creation of the Antarctic circumpolar current which also had a significant cooling effect on Antarctica."
Sijp says the growth of ice sheets also increased the Earth's albedo reflecting more of the Sun's energy back into space.
"But the main driver seems to be carbon dioxide, because that dropped 40 per cent over a three million year period as the planet cooled and Antarctica's ice sheets grew.""
In addition:- "At the end of the Middle Eocene Climatic Optimum, cooling and the carbon dioxide draw down continued through the late Eocene and into the Eocene-Oligocene transition around 34 million years ago. Multiple proxies, such as oxygen isotopes and alkenones, indicate that at the Eocene-Oligocene transition the atmospheric the carbon dioxide concentration had decreased to around 750-800 ppm. "
In other words, the Antarctic ice sheets only grew in size, due to a number of cause and effect related events! The events that occurred 34 million years ago do not apply today.
Lest we forget, for the past million years, the maximum concentration of atmospheric CO2 did not exceed 300 ppm in the warm periods between glacial ages or epochs, until the industrial age commencing 1800! The last glacial age ended when the vast Laurentide Ice Sheet in North America which extended from the North Pole to latitude 38 degrees north, collapsed 20,000 years ago !
A nice try by the fake foolish head in sand ersatz skeptics, living in global warming/climate change denial la la never land! Most of whom, are being egged on by deliberate lies, science fiction disinformation and propaganda, all of which is freely supplied by artisans or shills working for the "Carbon Pollution Industry" !
Meanwhile, back in the real world of reality, all true cynics and real skeptics, will carefully seek out the correct information, to make an informed decision, based purely on real facts and evidence! Those very few who live in a denial head in the sand world, being totally irrational, can make no such rational judgment and will continue to live in their own creative make believe world irrational world in fear of change or a cocoon that ignores all forms of reality and truth in the real world where the majority live!
Who benefits, from posting context free disinformation, to encourage one to vote against ones own survival or self interest, or that of their future relatives living in a far harsher resource depleted world, in the year 2140?
"When the Last Tree Is Cut Down, the Last Fish Eaten, and the Last Stream Poisoned, You Will Realize That You Cannot Eat Money" Native American saying