Those descendants born outside of Iceland , or who acquired citizenship from the country they emigrated to would lose their Icelandic citizenship .
Poor harvests , due to harsh winters and cold summers , throughout the country also forced large populations to leave Iceland .
Those descendants born outside of Iceland , or who acquired citizenship from the country they emigrated to would lose Iceland 's Iceland citizenship .
Poor harvests , due to harsh winters and cold summers , throughout the country also forced large populations to leave Iceland .