Contrary to most Alarmists' positions. the findings support the view that the Medieval Warm Period (MWP) and the Little Ice Age (LIA) were global events.
The IPCC says:
Thus current evidence does not support globally synchronous periods of anomalous cold or warmth over this timeframe, and the conventional terms of "Little Ice Age" and "Medieval Warm Period" appear to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries.
Medieval warmth appears, in large part, to have been restricted to areas in and neighbouring the North Atlantic.