A huge 9th-century stone monument in Sweden may have been erected by Vikings who feared a repeat of a cold climate crisis that took place more than 300 years earlier, according to a new study.
원문출처 : https://www.cnn.com/2020/01/09/world/runestone-climate-crisis-intl-hnk-scli-scn/index.html
원문출처 : https://www.cnn.com/2020/01/09/world/runestone-climate-crisis-intl-hnk-scli-scn/index.html