mellowyellow
Well-known Member
August 6th, 2021, 6:00AM / BY Abigail Eisenstadt
A paper published in the journal Nature Geoscience confirms that a drop in carbon dioxide around 34 million years ago caused Earth to enter a period of global cooling, called an icehouse state.
"Before then, vast regions of the world, including Antarctica, were covered in lush rainforests. There were no permanent icesheets,” said Vera Korasidis, a palynologist, or scientist who studies pollen and pollen fossils, and Peter Buck Postdoctoral Fellow at the Smithsonian’s National Museum of Natural History, who co-authored the study……..
https://www.smithsonianmag.com/blog...bal-cooling-34-million-years-ago-study-finds/