Here's why the South Pole froze over before the North Pole

July 2 : While it once was temperate and lush, Earth's southernmost continent Antarctica froze over about 34 million years ago, covered by an ice sheet that today is up to around 3 miles (5 km) thick. By contrast, the planet's northernmost realm, the Arctic region, did not freeze over for another 25 million years.

Raccontata dachannelnewsasia.com