Love Notes: Wittke and van Hoesel in PNAS

Cosmic impact or natural fires at the Allerød–Younger Dryas boundary: A matter of dating and calibration Annelies van Hoesel,a,b,1 Wim Z. Hoek,b Johannes van der Plicht,c,dGillian M. Pennock,a and Martyn R. Drurya Author information ► Copyright and License information ► See the reply “Reply to van Hoesel et al.: Impact-related Younger Dryas […]

In desperate hole, Pinter grabs another shovel

Nicholas Pinter

In a recent interview with NBC News anti-YDB jihadi Nick Pinter claimed that “the pro-impact literature is, at this point, fringe science being promoted by a single journal.”

This is nonsense — and easily disproven. The critics of the YDB hypothesis have published 10 times in PNAS (see […]

NatGeo actually calls Wally Broecker to discuss evidence for cosmic impact at Younger Dryas start

NatGeo 2007

NatGeo 2008

NatGeo 2013

Did a Comet Really Kill the Mammoths 12,900 Years Ago? Did the planetary upheaval 12,900 years ago come from the heavens—or Earth? Robert Kunzig

National Geographic Published September 10, 2013

Why did mammoths, mastodons, and other mega-beasts vanish from North America?

Was it because:

1) […]

First Harvard, now Dartmouth: More independent evidence for Younger Dryas impact

Vox Clamantis

September 9th, 2013 | Tags: , , , , , , , , , | Category: Great papers, impact markers, PNAS, Younger Dryas Boundary: ET or Not? | 108 comments

Tusk goes drone II

Nanodiamonds re-confirmed at YDB


Tip of the Hat: Thomas Lee Ellifritz

Nanodiamond Quantification in Pre-Younger Dryas to Recent Age Deposits Along Bull Creek, Oklahoma, USA

Leland C. Bement, Andrew S. Madden, Brian J. Carter, Alexander Simms, Andrew L. Swindle, Hanna M. Alexander, Scott Fine, and Mourad Benamara, Geological Society of America 125th Anniversayr Annual Meeting, […]


Published critic not reading YDB papers….Jacqueline Gill goes to Twitter seeking well-established impact marker info

See full exchange here.

Wittke, 2013

Wu, Sharma, 2013


More to come….



Two Ivies in two months confirm YD impact: Pinter of Southern Illinois – Carbondale to NBC: “Fringe science,” questions integrity of National Academy of Sciences

A meteor or comet impact near Quebec heaved a rain of hot melted rock along North America’s Atlantic Coast about 12,900 years ago, a new study claims.

Scientists have traced the geochemical signature of the BB-sized spherules that rained down back to their source, the 1.5-billion-year-old Quebecia terrane in northeastern Canada near the Gulf […]