Mass human extinctions in Saxon times

[studiot]

There was an interesting article in the New Scientist, dated 18 Jan 2014 about the decade between AD 534 and AD545 where a large part of the human populations were decimated in civilizations right round the world, asociated with a sudden large drop in global temperature that lasted a decade.

 

The geological reasons for the tmeperature drop are uncertain at best.

 

Does anyone have any more information to contribute?

Edited January 19, 2014 by studiot

[StringJunky]

 

It has been conjectured that these changes were due to ashes or dust thrown into the air after the impact of a comet^[13] or meteorite,^[14][15] or after the eruption of a volcano (a phenomenon known as "volcanic winter").^[16] The evidence of sulfate deposits in ice cores strongly supports the volcano hypothesis; the sulfate spike is even more intense than that which accompanied the lesser episode of climatic aberration in 1816, popularly known as the "Year Without a Summer", which has been connected to the explosion of the volcano Mount Tambora in Sumbawa,Indonesia.^[2]

 

http://en.wikipedia.org/wiki/Extreme_weather_events_of_535%E2%80%93536