https://www.theguardian.com/news/2022/apr/05/drought-may-have-forced-vikings-to-leave-greenland-says-study
https://www.smithsonianmag.com/history/why-greenland-vikings-vanished-180962119/#:~:text=The%20Vikings%20established%20two%20outposts,north%2C%20called%20the%20Western%20Settlement.