The latest addition to this list is the discovery of pollen grains of tropical plants, including Araucaria araucana or monkey puzzle trees, below the ice cover in Antarctica. They suggest that once the climate was a lot warmer.
The researchers found these remains in ice cores. While they interpreted their discovery in terms of millions of years, the Flood that devastated the early Earth some 4,500 years ago is a much more credible explanation.
Coghlan, Andy. 2016. Ice core reveals how lush Antarctica changed to icy desert. New Scientist (6 May).