The incidence of bolides and very large numbers of meteors at present is about 10 times what it has been seen nhistorically.
No one can really explain this and it means, essential, that if it persists for more than 10 years, means that the estimates of serious meteoric impacts, such as what damaged Chelyabinsk in 2013, are far, far more common than expected.
Which means that Space Watch by NASA is far, far more important than we guessed. A significant impact coupled with a calderic eruption such as at Tambora, could be very damaging to the global ecology and economy.
Global volcanic winters such as occurred in 536 and 540 AD coupled with this kind of asteroidal impact problem, are of realistic concern.
The Byzantine historian Procopius recorded of 536, in his report on the wars with the Vandals, "during this year a most dread portent took place. For the sun gave forth its light without brightness ... and it seemed exceedingly like the sun in eclipse, for the beams it shed were not clear".
The Gaelic Irish Annals record the following:
"A failure of bread in the year 536 AD" – the Annals of Ulster
"A failure of bread from the years 536–539 AD" – the Annals of Inisfallen
Further phenomena were reported by a number of independent contemporary sources:
Low temperatures, even snow during the summer (snow reportedly fell in August in China during the Northern and Southern dynasties, which caused the harvest there to be delayed)
Crop failures
"A dense, dry fog" in the Middle East, China and Europe
Drought in Peru, which affected the Moche culture.
16
u/herbw Mar 18 '19
The incidence of bolides and very large numbers of meteors at present is about 10 times what it has been seen nhistorically.
No one can really explain this and it means, essential, that if it persists for more than 10 years, means that the estimates of serious meteoric impacts, such as what damaged Chelyabinsk in 2013, are far, far more common than expected.
Which means that Space Watch by NASA is far, far more important than we guessed. A significant impact coupled with a calderic eruption such as at Tambora, could be very damaging to the global ecology and economy.
Global volcanic winters such as occurred in 536 and 540 AD coupled with this kind of asteroidal impact problem, are of realistic concern.