Miss Global Warming Yet? If Not, Just Wait And You Might - Forbes: "Shortened, less reliable growing seasons in Europe brought on the Great Famine of 1315-1317. Norse colonies which had settled in a formerly warmer Greenland starved and vanished by the early fifteenth century as crops failed and livestock froze.
During the mid-seventeenth century encroaching glaciers destroyed farms and villages in the Swiss Alps. Sea ice surrounding Iceland closed harbors to shipping. Boxed in and experiencing cereal crop farming failures, Iceland’s population fell by half.
In the late seventeenth century agriculture dropped off so dramatically that Alpine villagers lived on breads made from ground nutshells mixed with barley and oat flour. Famines claimed about ten percent of the people in France, Norway and Sweden, about one-fifth of those in Estonia, and one-third in Finland during the late 1600s."