Researchers have found evidence of rainforests near the South Pole 90 million years ago, suggesting the climate was exceptionally warm at the time.
A team from the UK and Germany discovered forest soil from the Cretaceous period within 900 km of the South Pole . Their analysis of the preserved roots, pollen and spores shows that the world at that time was a lot warmer than previously thought.
The discovery and analysis were carried out by an international team of researchers led by geoscientists from the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research in Germany and including Imperial College London researchers. Their findings are published today in Nature.
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