The Vikings erected a runestone out of fear of a climate catastrophe
(PHYSorg.com Archaeology & Fossils)

Several passages on the Rök stone-the world`s most famous Viking Age runic monument-suggest that the inscription is about battles and for over a hundred years, researchers have been trying to connect the inscription with heroic deeds in war. Now, thanks to an interdisciplinary research project, a new interpretation of the inscription is being presented. The study shows that the inscription deals with an entirely different kind of battle: the conflict between light and darkness, warmth and cold, life and death.