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Why 536 was ‘the worst year to be alive’

  

Category:  Health, Science & Technology

Via:  split-personality  •  6 years ago  •  11 comments

Why 536 was ‘the worst year to be alive’
An 72-meter ice core drilled in the Colle Gnifetti Glacier in the Swiss Alps entombs more than 2000 years of fallout from volcanoes, storms, and human pollution.

S E E D E D   C O N T E N T




Ask medieval historian Michael McCormick what year was the worst to be alive, and he's got an answer: "536." Not 1349, when the Black Death wiped out half of Europe. Not 1918, when the flu killed 50 million to 100 million people, mostly young adults. But 536. In Europe, "It was the beginning of one of the worst periods to be alive, if not the worst year," says McCormick, a historian and archaeologist who chairs the Harvard University Initiative for the Science of the Human Past.

A mysterious fog plunged Europe, the Middle East, and parts of Asia into darkness, day and night—for 18 months. "For the sun gave forth its light without brightness, like the moon, during the whole year," wrote Byzantine historian Procopius. Temperatures in the summer of 536 fell 1.5°C to 2.5°C, initiating the coldest decade in the past 2300 years. Snow fell that summer in China; crops failed; people starved. The Irish chronicles record "a failure of bread from the years 536–539." Then, in 541, bubonic plague struck the Roman port of Pelusium, in Egypt. What came to be called the Plague of Justinian spread rapidly, wiping out one-third to one-half of the population of the eastern Roman Empire and hastening its collapse, McCormick says.

Historians have long known that the middle of the sixth century was a dark hour in what used to be called the Dark Ages, but the source of the mysterious clouds has long been a puzzle. Now, an ultraprecise analysis of ice from a Swiss glacier by a team led by McCormick and glaciologist Paul Mayewski at the Climate Change Institute of The University of Maine (UM) in Orono has fingered a culprit. At a workshop at Harvard this week, the team reported that a cataclysmic volcanic eruption in Iceland spewed ash across the Northern Hemisphere early in 536. Two other massive eruptions followed, in 540 and 547. The repeated blows, followed by plague, plunged Europe into economic stagnation that lasted until 640, when another signal in the ice—a spike in airborne lead—marks a resurgence of silver mining, as the team reports in Antiquity this week.

read more https://www.sciencemag.org/news/2018/11/why-536-was-worst-year-be-alive


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Split Personality
Professor Guide
1  seeder  Split Personality    6 years ago
Ice cores are drilled in glaciers and on ice sheets on all of Earth's continents. Most ice cores, however, come from Antarctica and Greenland, where the longest ice cores extend to 3 km—over 2 miles—or more in depth. Ice cores from the cold interior regions of polar ice sheets provide exceptionally well-preserved and detailed climate records. This is because the lack of melt at these locations does not corrupt the record of trapped gases or blur the record of other impurities. The oldest continuous ice core records extend to 130,000 years in Greenland, and 800,000 years in Antarctica.

Basically like counting the rings of a tree, ice core layers reveal the history of weather and air quality of the past.

Can you imagine, ice layers from 2 miles down, revealing the weather from several hundred thousand years ago.....?

 
 
 
dave-2693993
Junior Quiet
2  dave-2693993    6 years ago

The Younger Dryas was even more dramatic and affected both hemispheres. Not long after we had out of the most recent Glacial maximum the earth plunged drastically into another Ice Age lasting 1,200 or so years. When the earth snapped out of the Younger Dryas it was drastic. Again, largely because of ice core samples, some are thinking it was a matter of days and resulted in many of the earth wide global flood stories.

Present to the left.

younger_dryas_gisp2.jpg

 
 
 
Freefaller
Professor Quiet
2.1  Freefaller  replied to  dave-2693993 @2    6 years ago

Wonder if that massive impact crater they recently found in Greenland was responsible for that.

 
 
 
Split Personality
Professor Guide
2.1.1  seeder  Split Personality  replied to  Freefaller @2.1    6 years ago
 
 
 
dave-2693993
Junior Quiet
2.1.2  dave-2693993  replied to  Freefaller @2.1    6 years ago

One of the recent theories suggests a massive impact event put us back into the Younger Dryas ice age and a massive coronal ejection snapped us back out.

There are some details I don't have time to convey right now, but will try later tonight.

 
 
 
Freefaller
Professor Quiet
2.1.3  Freefaller  replied to  Split Personality @2.1.1    6 years ago

Well the article I read compared it to the size of Paris but I'm still pretty sure we're talking about the same crater.

 
 
 
Trout Giggles
Professor Principal
3  Trout Giggles    6 years ago

Sounds like there was more than one reason for the Dark Ages

 
 

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