4 ms·

A little more reading.. "All extinct mammals dated in this study have last occurrence dates older than 13.00 ka, with a modeled extirpation time estimate acros

A little more reading.. "All extinct mammals dated in this study have last occurrence dates older than 13.00 ka, with a modeled extirpation time estimate across all taxa of 13.07 to 12.89 ka [using the Gaussian-Resampled Inverse-Weighted McInerney (GRIMW) extinction estimator" Even tighter bound than my comment and still a tight fit around 12900. Figure 1 in their paper shows this as well. In other news, there was recently a "comprehensive refutation" of YDIH (pre-print) that a fave of my, Martin Sweatman, takes a good look at. A lot of this debate comes down to careful dating, error bars, etc. https://martinsweatman.blogspot.com/2023/08/debunking-holliday-et-als-comprehensive.html https://martinsweatman.blogspot.com/2023/08/debunking-hollid...

erulabs 3y ago
What’s more intriguing to me beyond the YDIH is that clearly something wild happened during the Younger Dryas period, impact or not. Regardless of what caused the dramatic fluctuations in temperature, wildfires, ocean levels (floods) and megafauna, the fluctuations did occur, and mark the beginning of human civilization as we know it, even though we also know Homo Sapiens existed long before this period. To imagine a period potentially as short as 100 years where the world went from unbearably cold at its warmest to the perpetual summer world we live in now and mega predators simply vanished… if I lived through that period I’d also tell my children to amass resources urgently (and tell stories of the hell world we came from). Who knows how long this insanely human friendly world might last! The idea that our species oldest stories might be about catastrophic climate change is absolutely humbling.
- pmayrgundter 3y ago
  Nicely put!
- LargoLasskhyfv 3y ago
  https://en.wikipedia.org/wiki/Asterix_and_the_Falling_Sky https://en.wikipedia.org/wiki/Asterix_and_the_Falling_Sky Edit: Hrrmph.That was not exactly what I remembered. What I do remember are several references to "The Sky is falling!" in the preceeding comics. Which I later found to be actual reference to some Gauls saying that to Roman elites, when asked about their greatest fear. As written down in some classical latin texts, which I don't remember right now.

erulabs 3y ago

What’s more intriguing to me beyond the YDIH is that clearly something wild happened during the Younger Dryas period, impact or not. Regardless of what caused the dramatic fluctuations in temperature, wildfires, ocean levels (floods) and megafauna, the fluctuations did occur, and mark the beginning of human civilization as we know it, even though we also know Homo Sapiens existed long before this period. To imagine a period potentially as short as 100 years where the world went from unbearably cold at its warmest to the perpetual summer world we live in now and mega predators simply vanished… if I lived through that period I’d also tell my children to amass resources urgently (and tell stories of the hell world we came from). Who knows how long this insanely human friendly world might last! The idea that our species oldest stories might be about catastrophic climate change is absolutely humbling.

pmayrgundter 3y ago
Nicely put!
LargoLasskhyfv 3y ago
https://en.wikipedia.org/wiki/Asterix_and_the_Falling_Sky https://en.wikipedia.org/wiki/Asterix_and_the_Falling_Sky Edit: Hrrmph.That was not exactly what I remembered. What I do remember are several references to "The Sky is falling!" in the preceeding comics. Which I later found to be actual reference to some Gauls saying that to Roman elites, when asked about their greatest fear. As written down in some classical latin texts, which I don't remember right now.