Iceland is so barren of trees that there’s a joke that those who get lost in the woods only need to stand up to find their way. About a quarter of Iceland used to be forested, but after the Vikings arrived, they proceeded to cut them all down for houses and pastures. Now, Icelanders are trying to restore those forests. Host Marco Werman speaks with Aoalsteinn Sigurgeirsson, deputy director of the Icelandic Forestry Association.