12,800 years ago, earth was struck by a disintegrating comet, setting off global firestorms

[Justplain]

This info confirms Graham Hancock's assertion of a global catastrophe 12k years ago that wiped out the preceding global civilization.

"According to modern theories of geological evolution, the last major ice age (known as the Pliocene-Quaternary glaciation) began about 2.58 million years ago during the late Pliocene Epoch. Since then, the world has experienced several glacial and interglacial periods, and has been in an inter-glacial period (where the ice sheets have been retreating) ever since the last glacial period ended about 10,000 years ago.

"According to new research, this trend experienced a bit of a hiccup during the late Paleolithic era. It was at this time – roughly 12,800 years ago, according to a new study from the University of Kansas – that a comet struck our planet and triggered massive wildfires. This impact also triggered a short glacial period that temporarily reversed the previous period of warming, which had a drastic affect on wildlife and human development.

"The study in question, “Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact ~12,800 Years Ago”, was so large that it was divided into two parts. Part I. Ice Cores and Glaciers; and Part II. Lake, Marine, and Terrestrial Sediments, were both recently published by The Journal of Geography, part of the the University of Chicago Press’ series of scientific publications."...

"For the sake of their study, the team combined data from ice core, forest, pollen and other geochemical and isotopic markers obtained from more than 170 different sites across the world. Based on this data, the team concluded that roughly 12,800 years ago, a global disaster was triggered when a comet measuring about 100 km (62 mi) in diameter exploded in our atmosphere and rained fragments down on the surface.

" KU Emeritus Professor of Physics & Astronomy Adrian Melott explained in a KU press release:

“The hypothesis is that a large comet fragmented and the chunks impacted the Earth, causing this disaster. A number of different chemical signatures — carbon dioxide, nitrate, ammonia and others — all seem to indicate that an astonishing 10 percent of the Earth’s land surface, or about 10 million square kilometers, was consumed by fires.”

"According to their research, these massive wildfires also caused a massive feedback in Earth’s climate. As fires rushed across much of the planet’s landscape, the smoke and dust clogged the sky and blocked out sunlight. This triggered rapid cooling in the atmosphere, causing plants to die, food sources to dwindle, and ocean levels to drop. Last, but not least, the ice sheets which had been previously retreating began to advance again.

"This quasi-ice age, according to the study, lasted about another thousand years. When the climate began to warm again, life began to recover, but was faced with a number of drastic changes. For example, fewer large animals survived, which affected the hunter-gather culture of humans all across North America. This was reflected in the different types of spear points that have been dated to this period.

"What’s more, pollen samples obtained from this period indicate that pine forests were likely burned off and were replaced by poplar forests, a species that colonizes cleared areas. The authors also suggest that this impact could have been responsible for the so-called Younger Dryas cool episode. This period occurred roughly 12,000 years ago, where gradual climatic warming was temporarily reversed.

"Intrinsic to this period was an increase of biomass burning and the extinctions of larger species during the late Pleistocene period (ca. 2,588,000 to 11,700 years ago). These sudden changes are believed to be what led to severe shifts in human populations, causing a decline during the 1000-year cold period, and leading to the adoption of agriculture and animal husbandry once the climate began to warm again."

https://www.universetoday.com/138463...irestorms/amp/

[Hervé]

Glad to see this article making the rounds

See this post for an illustrated version of the above article: https://projectavalon.net/forum4/show...=1#post1205792

[Mark (Star Mariner)]

I firmly believe that a very significant disaster occurred in that approximate timeframe. Something killed off the mega-fauna, something destroyed the last vestiges of Atlantis, and something radically altered the climate (the Sahara used to be wet and temperate).

Hancock has compiled a ton of evidence to show that a violent, watershed event, disaster, reshaped the world at that time. It could be a game-changer if this hypothesis really does stand up.

A 62 mile wide comet does strike me as extreme, if true. That's ten times larger than the Chixulub impact, and a lot of mass to rain down on the earth. Maybe only small chunks made it through the atmosphere. We can only imagine the firestorms, the devastation this caused. In fact I don't think we can imagine anything on this scale.

[ghostrider]

In some circles they say a rouge comet passed by earth and depending upon our position to the sun the passing was sometimes catastrophic... its claimed to be responsible for the plagues of egypt , throwing sea beds out of place, moving mountains, flooding coastlines, and killing many people... the original building of the pyramids of egypt was partly as shelter from this passing comet our ancestors called the destoyer ... their knowledge of mapping the stars was also to prepare for the passing ... This same comet destroyed their home world and forced a migration here...

[Sunny-side-up]

How much Atmosphere can these types of impact/fire storm events deplete, while smashing/burning through ?
I'm running on low air intake myself atmo and know how it dumb's you down.

Graham Hancock:
investigation, observation, conclusions.
They all tally up and make sense to me.

[bluestflame]

ring of fire and oceans seem to be symptomatic of that