Conversely, global cooling leads to crop failure, the rise of disease, civilization breakdown and cease in trade
Charlemagne, Vikings & Global Warming
Excerpts from Armstrong Economics
The rise of Charlemagne came 309.6 years from the fall of Rome in 476AD. What is never discussed in the history books is the correlation with weather. Both the rise of the Vikings and the Franks coincided with the Medieval Warm Period (800–1300) and ended with the start of the Little Ice Age (about 1250–1850). It was at the end of this Global Warming period that we find the reappearance of gold coinage. The climate directly influenced the rise and fall of the Vikings. Moreover, we now know that they established a settlement for a while in America about 500 years before Columbus.
Climate was warm and fairly stable pre-180AD which reduced the threat of volcanic winters. There was an exceptionally low level of volcanic activity which also prevailed from c. 40BC to 150AD. We have similarly experienced post-1850 in modern times a warming period with low volcanic activity.
In central Greenland, temperatures became quite warm from c. 20BC to c. 75AD. Global Cooling began in Greenland post 75AD producing a gradual relatively cool period from about c. 100 to c. 270AD. As climate began to turn colder in the northern regions of Europe, this prompted the barbarian invasions into Southern Europe which was dominated by the Roman Empire. Indeed, it was Emperor Aurelian (270-275AD) who had to build the wall around Rome for the first time. There is a lot of climate evidence that confirms the rise of the Roman Empire which peaked 180AD, coincided with a Global Warming period which peaked about 150AD.(1)
Clearly, the climate was turning much colder inspiring the barbarian invasions from the north. As the solar activity turned down, volcanic activity began to rise. The Byzantine historian Procopius wrote: “For the sun gave forth its light without brightness, like the moon, during the whole year.” Temperatures in the summer plummeted creating the coldest decade in the past 2300 years. Snow fell as far east as China during the summer causing starvation as crops failed. The Irish chronicles recorded that “a failure of bread from the years 536–539” took place.
The mysterious clouds which engulfed the world contributed to the era being called the Dark Ages in Western Europe. From a Swiss glacier, ice core samples were obtained at the Climate Change Institute of The University of Maine. They determined that a cataclysmic volcanic eruption in Iceland spewed ash across the Northern Hemisphere during early in 536AD. Two other massive eruptions followed in subsequent years during 540AD and again during 547AD. What appears to have been three successive major volcanic eruptions, the Dark Ages entered a volcanic winter which plunged Europe into famine which lasted for nearly 100 years into 640AD. This was also solar minimum which seems to correlate to an increase in volcanic activity.
With famine comes lower nutrition leaving the people more susceptible to disease. It appears that following the 546AD eruption, we then see the Justinian Plague (541-542AD) which was a bubonic plague… This plague spread rapidly throughout the Empire wiping out one-third to one-half of the entire population of the Eastern Roman Empire.
Therefore, because of Global Cooling, crops fail and disease rises. Civilization breaks down and trade ceases. The major solar cycle is about 300 years. Therefore, the rise of Charlemagne came 309.6 years from the fall of Rome in 476AD and it was the fall of Rome which corresponded to the climate turning colder post-150AD.
As the climate warmed, the Vikings also grew in power and were able to explore even reaching America. Their invasion of England was like the barbarians invading Rome….
Charlemagne’s empire indeed broke apart much as was the case with the collapse of Alexander the Great’s Empire which was divided among his generals. Even NASA is forecasting that the next solar cycle will be the lowest in hundreds of years. If we see the continued rise in volcanic activity, then there is a serious threat of a prolonged Global Cooling.
See entire article, including cittions:
Thanks to Jack Hydrazine for this link