Postbox 350km above Arctic Circle among global sites going green for St Patrick’s day

Sydney Opera House will once again be taking part of the initiative where it first began 11 years ago

A postbox at the summit of Øretoppen Mountain in Norway will become the most northerly ‘greening’ site in the world to join the St Patrick’s Day Global Greening initiative.

The postbox that is 350km above the Arctic Circle is just one of the new famous sites around the world that will go green this month, announced by Tourism Ireland today.