Read here. Using multiple proxies, researchers were able to reconstruct temperatures back to 1000AD. The western Canada Columbia icefield historical winter temperatures marked the significance of both the Medieval Warming and Little Ice age in non-Atlantic/N. Europe areas. (click on image to enlarge)
"In viewing the researchers' results, it can be seen that the peak
winter temperature of the Medieval Climate Anomaly -- or Medieval Warm
Period, as we typically refer to it -- throughout Canada's Columbia
Icefield was warmer than the peak temperature of the Current Warm
Period (which appears to have occurred ~1915), while it was even warmer
than the mean temperature of the 1941-1990 base period, as well as the
mean temperature of the last ten years of that period (1980-1990).
Hence, it is becoming ever more clear that recent temperatures around
the world have not been "unprecedented" over the past one to two
millennia, as climate alarmists typically claim they have."
Other historical charts and modern temperature charts. Other climate history postings.
