Exploring abrupt climate change induced by comets and asteroids during human history

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Younger Dryas Impact Evidence

Alpine Younger Dryas Impact evidence

Senior soil scientist Bill Mahaney nails YDI in glacial sediments
A masterful and comprehensive effort here from respected Comet Research Group co-author, Bill Mahaney. Much of the discipline-specific text is hard for the Tusk to fully grasp, and I have had no time to properly review, but I have asked Bill to provide a layman’s summary of the approach and conclusions. I hope to…
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Ancient Traumas, Modern Hints

Deep insights from YouTube
As the Taurid meteor season wanes on the approach of Thanksgiving, I thought it was relevant (and economical) to share a couple of recent videos which present the Taurid phenomena from different, but mutually informative contexts. The first is a ‘live shot,’ and the second is a ‘retrospective,’ if you will….
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Comet fragment airburst melts, whips and freezes Chilean desert sands during Younger Dryas

Horrifying event witnessed by humans -- Brown University says desert glass is from space -- not "grass fires"
In wake of Halloween last week a very, very scary scientific paper was published. “Widespread glasses generated by cometary fireballs during the late Pleistocene in the Atacama Desert, Chile,” creates a rebuttable presumption that horrific cosmic airbursts — without leaving craters — have indeed occurred in human history, a central contention here at the…
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Smoking Gun: Fifty years of study by Bill Napier et al. vindicated in new paper

Taurid Meteor Stream pummels planet throughout human history, remains menace; Nobel Prize for UK Neo-Catastrophists?
A comprehensive study of the Taurid meteor stream released last week confirms a central understanding of astronomer Dr. Bill Napier and the Comet Research Group, one which was incorporated into the YDI hypothesis from the start. From Discover Magazine: The longest-studied comets in our solar system have inspired ancient myths, religious fervor and modern scientific…
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Teaching the Younger Dryas Impact

The Tusk has characteristically hit a summer communication drought. But that doesn’t mean we can’t toss up a YouTube here and there from the coast. It’s welcome to see college courses fully integrating the Younger Dryas Impact into their thinking about the Younger Dryas and climate change. Here’s a great effort from Middlebury College….
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Svensson 2020

Younger Dryas Impact cataclysm evidence exceeds that of UFO's
It has been proposed that the Younger Dryas period/GS-1 was initiated by a cosmic impact, for which there is indirect and debated evidence in a large number of sites in the NH surrounding the North Atlantic region (Kennett et al., 2015). A very significant Platinum (Pt) spike has been identified in the GISP2 ice…
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Sweatman nails it

Authoritative and readable overview of the Younger Dryas Impact debate published in Earth Science Reviews
Indefatigable genius and digital friend of the Tusk, Dr. Martin Sweatman, authored a surprise blockbuster this week. Below is a peer-reviewed and fully accepted pre-online synthesis overview of the Younger Dryas Impact controversy since the very first paper in 2007. ‘The Younger Dryas impact hypothesis: review of the impact evidence’ concludes……
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Don’t miss media

Excellent content piling up on the Younger Dryas Impact Event
The Tusk recalls keeping the YDIE a secret in 2006 and 2007, so as not to threaten the publication of what became the seminal paper in 2007. Today the secret is most assuredly OUT. Hundreds of hours of podcasts, videos, and plain old lectures are spilling forth from people all over the globe who are…
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Edinburgh professor nearing end of monumental YDIH review
What would the planet do without the tireless? I love how our subject draws in gifted obsessives from around the world. One example is Marc Young in Australia who compiled The Bib last year. Soon after The Bib was released, Dr. Martin Sweatman University of Edinburgh picked up and leveraged the easily available information. …
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America’s skeptic changes mind on #ydih

Shermer reads Comet Research Group paper, tweets Hancock
Michael Shermer, Founding Publisher of Skeptic Magazine, tweeted Graham Hancock an extraordinary note this week. Shermer announced that based on last week’s blockbuster Abu Hureyra paper he was persuaded to re-think his position on the Younger Dryas Impact Hypothesis. What a welcome development in the long effort to win the hearts and minds of persistent…
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Lake Tahoe Comet Tsunami

Sediments date to Younger Dryas comet impact quake
One of the best things about the Younger Dryas Impact Hypothesis is finding catastrophic features that may date to the event, but have not yet been directly connected with it. Today I submit one of the finest examples: The Great Lake Tahoe Comet Tsunami. Its is a well-published and uncontroversial fact that in the prehistoric…
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Twitter Tusk

Black mat becoming a thang
Well, maybe it’s not really a “thang,” yet. But the Tusk is having some popular fun on Twitter tweeting photographs of the iconic, but relatively unknown, Younger Dryas Black Mat. I think many people interested in our subject have some sense that a clearly visible, multi-continent-wide, destruction layer exists, but many others certainly do…
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Peer review working?

YDIH dominates science community readership stats
The science publishing and peer-review process gets a lot of grief, often for good reason. Many fruitful areas of paradigm changing research languish outside the major journals and never pass from the gatekeepers to the printing press. But thankfully the YDIH, despite the controversy and “robust” debate, appears regularly in the world’s top earth…
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YDIH Bibliography

The Complete Younger Dryas Impact Hypothesis Bibliography and Publication Archive

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