That might explain why in the 100 years after the death of Charlemagne, Europe had 30 major famines some lasting 2 and 3 years. More details after I get a good night’s sleep.
When the Little Ice Age started, it began without warning -- after generations of the same planting schedules, suddenly the springs were too cold and too rainy. Seeds rotted in the fields, and were also no longer available as food. The European climate still hasn't warmed back up to the prior conditions, as evidenced by abandoned "dark ages" farmsteads at higher altitudes and higher latitudes than are feasible today. At least one such ruined house showed up from *under* a glacier that melted, as the warmist hoaxers claimed, for the first time since the end of the last ice age.