Teaching the Younger Dryas Impact

August 1, 2021

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.[..

Svensson 2020

Younger Dryas Impact cataclysm evidence exceeds that of UFO's

May 27, 2021

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[..

Sweatman nails it

Authoritative and readable overview of the Younger Dryas Impact debate published in Earth Science Reviews

May 13, 2021

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…[..

Don’t miss media

Excellent content piling up on the Younger Dryas Impact Event

September 28, 2020

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[..

Sweatman destroys Sun et al. in rapid review

Polymath professor takes down volcano paper; proper interpretation of data supports comet impact theory for Younger Dryas

August 6, 2020

Sun et al. calls it quits? Download the PDF file .[..

Younger Dryas trigger: Cosmic Impacts or Volcanoes?

Sun et al. and Sweatman trade notes through Twitter Tusk

August 4, 2020

An extensively covered journal article by Sun et al. in Science Advances concludes that volcanoes — not a fragmenting comet — caused the Younger Dryas. Sun provides an invaluable trove of data, but less than 72 hours after the publication their interpretation is suffering.[..

Edinburgh professor nearing end of monumental YDIH review

June 13, 2020

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. [..

America’s skeptic changes mind on #ydih

Shermer reads Comet Research Group paper, tweets Hancock

March 16, 2020

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[..

Planet’s earliest agricultural village melted by cosmic hell in Syria

Comet Research Group in Nature

March 7, 2020

“A single major asteroid impact would not have caused such widely scattered materials like those discovered at Abu Hureyra,” Kennett said. “The largest cometary debris clusters are proposed to be capable of causing thousands of airbursts within a span of minutes across one entire hemisphere of Earth. The YDB hypothesis proposed this mechanism to[..

Lake Tahoe Comet Tsunami

Sediments date to Younger Dryas comet impact quake

March 7, 2020

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[..

Twitter Tusk

Black mat becoming a thang

December 27, 2019

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[..

Comet Research Group successfully defends desperate attack from longtime foes

December 11, 2019

Point Counter Point[..

Peer review working?

YDIH dominates science community readership stats

December 7, 2019

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[..

2019 AGU abstract supports Younger Dryas “exacerbated” by cosmic impact

But cosmic impact follows volcano?

November 23, 2019

Sharma, 2013 This week is “abstract reveal” week for the enormous annual conference of the American Geophysical Union (AGU) held each December (See Tusk at 2009 AGU). So each year around this time I search the AGU website for any coming presentations concerning the Younger Dryas and cosmic impact. Fall Meeting 2019 San Fran[..

Updated Younger Dryas Impact Hypothesis Bibliography and Paper Archive

Now with READ IT function!

November 23, 2019

Tireless Aussie Marc Young has done it again. During his summer holiday Marc has managed to link every YDIH peer-reviewed journal article directly from the bibliography spreadsheet. My idea to have a slick “accordion file” of all the papers at the bottom of the page was simply ahead of its time, and this is[..

Part Three

The indefatigable Martin Sweatman produces 3rd Volume of YDIH Lit Review

November 22, 2019

Part Deux

Sweatman rolls out Younger Dryas Impact 2nd Volume Lit Review

November 2, 2019

Bibliography and Paper Archive Permanent Page

October 27, 2019

See permanent page here Readers may recall a few months ago the Tusk and Australian university student Marc Young compiled a bibliography and archive file of all the YDIH publications since the seminal PNAS publication in 2007. I have taken the files and given them a permanent home here. The publication history of the[..

Cosmic geochemistry from global cataclysm found in Palmetto State pond

Christopher Moore of USC nails Platinum Layer at ~12,800 before present in White Pond, South Carolina

October 24, 2019

New evidence that an extraterrestrial collision 12,800 years ago triggered an abrupt climate change for Earth The muck that’s been accumulating at the bottom of this lake for 20,000 years is like a climate time capsule. Christopher R. Moore, University of South Carolina What kicked off the Earth’s rapid cooling 12,800 years ago?[..

Africa

Younger Dryas Impact Platinum peaks found again in Southern Hemisphere

October 2, 2019

NY Post Gizmodo Quartz Francis Thackeray This confirmation of a South African platinum layer from the Younger Dryas Impact was particularly welcome for several reasons. First, it is another confirmation of evidence for the impact in the Southern Hemisphere, following the Pilauco paper from Chile in March of this year. Second, the lead[..

Younger Dryas Impact Evidence

Younger Dryas Impact cataclysm evidence exceeds that of UFO's

Authoritative and readable overview of the Younger Dryas Impact debate published in Earth Science Reviews

Excellent content piling up on the Younger Dryas Impact Event

Polymath professor takes down volcano paper; proper interpretation of data supports comet impact theory for Younger Dryas

Sun et al. and Sweatman trade notes through Twitter Tusk

Edinburgh professor nearing end of monumental YDIH review

Shermer reads Comet Research Group paper, tweets Hancock

Comet Research Group in Nature

Sediments date to Younger Dryas comet impact quake

Black mat becoming a thang

Comet Research Group successfully defends desperate attack from longtime foes

YDIH dominates science community readership stats

But cosmic impact follows volcano?

Now with READ IT function!

The indefatigable Martin Sweatman produces 3rd Volume of YDIH Lit Review

Sweatman rolls out Younger Dryas Impact 2nd Volume Lit Review

Christopher Moore of USC nails Platinum Layer at ~12,800 before present in White Pond, South Carolina

Younger Dryas Impact Platinum peaks found again in Southern Hemisphere

YDIH Bibliography

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