Temperate rainforests near the South Pole during peak Cretaceous warmth

@article{Klages2020TemperateRN,
  title={Temperate rainforests near the South Pole during peak Cretaceous warmth},
  author={Johann Philipp Klages and Ulrich Salzmann and Torsten Bickert and C. Hillenbrand and Karsten Gohl and Gerhard Kuhn and Steven M. Bohaty and J{\"u}rgen Titschack and Juliane M{\"u}ller and Thomas Frederichs and Thorsten Bauersachs and Werner Ehrmann and Tina van de Flierdt and P. S. Pereira and Robert D. Larter and Gerrit Lohmann and Igor Niezgodzki and Gabriele Uenzelmann‐Neben and Maximilian Zundel and Cornelia Spiegel and Chris Mark and David M. Chew and Jane E. Francis and Gernot Nehrke and Florian Schwarz and James A. Smith and Tim Freudenthal and Oliver Esper and Heiko P{\"a}like and Thomas A. Ronge and Ricarda Dziadek and V. J. E. B. C. K. K. Y. F. M. Afanasyeva Arndt Ebermann Gebhardt Hochmuth K{\"u}ssne and Victoria Afanasyeva and Jan Erik Arndt and Benjamin Ebermann and Catalina Gebhardt and Katharina Hochmuth and Kevin K{\"u}ssner and Yani Najman and Florian Riefstahl and Mirko Scheinert},
  journal={Nature},
  year={2020},
  volume={580},
  pages={81-86}
}
The mid-Cretaceous period was one of the warmest intervals of the past 140 million years 1 – 5 , driven by atmospheric carbon dioxide levels of around 1,000 parts per million by volume 6 . In the near absence of proximal geological records from south of the Antarctic Circle, it is disputed whether polar ice could exist under such environmental conditions. Here we use a sedimentary sequence recovered from the West Antarctic shelf—the southernmost Cretaceous record reported so far—and show that a… 
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