Readers will recall the awkwardly titled September post, “NatGeo actually calls Wally Broecker to discuss evidence for cosmic impact at Younger Dryas start.” The Tusk was trying to convey there my astonishment that a thoughtful and thorough article was written on recent advances in the study of the Younger Dryas Boundary. Only […]
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:
Stein B. Jacobsen? and here and here
Program Note: More recent posts can be found below
July 25th, 2013 | Tags: Harvard, mark boslough, paetev, Platinum, Sandia Labs, Wallace Broecker, wally broecker | Category: impact markers, Independent Confirmations, PNAS, wally broecker, Younger Dryas Boundary: ET or Not? |