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April 2, 2020 07:00 am

Evidence of Ancient Rainforests Found In Antarctica

mi writes: Researchers have discovered evidence that Antarctica supported a swampy rainforest as "recently" as 90 million years ago, according to a new study. "Even during months of darkness, swampy temperate rainforests were able to grow close to the South Pole, revealing an even warmer climate than we expected," said Tina van de Flierdt, study co-author and professor in the Imperial College London's Department of Earth Science and Engineering. The researchers took CT scans of a slice of the seafloor near the Pine Island and Thwaites glaciers. They revealed pristine samples of forest soil, pollen, spores and even root systems so well preserved that they could identify cell structures. The researchers say that the warming effect caused by higher carbon dioxide levels created the right conditions for a rainforest environment. "The average daytime temperature was 53 degrees Fahrenheit," reports CNN. "River and swamp temperatures were likely around 68 degrees Fahrenheit. And the Antarctic summer temperature was likely around 66 degrees Fahrenheit. They estimate rainfall reached about 97 inches per year -- about the same as Wales today."

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