Some 30 international scientists are gathered in Bremen, Germany to analyse the material from three weeks of deep sea drilling. It looks like the arctic could have been covered by ice 40 million years ago, that’s up to 35 million years earlier than previously believed.
Stockholm University’s Jan Backman was one of the head researchers on the expedition. He says the area would have been much colder than previously believed and covered by ice in the winter which would then melt in summertime.
And the researchers have also discovered that the arctic had a tropical climate like the Mediterranean some 55 million years ago.