Is the Dinosaur Extinction Story Wrong?

August 14, 2018

And if so, what does that mean to us?

Could the Cretaceous extinction have been more due to climate change than asteroid impact?

Below, discussion of an earlier extinction that scientists think was indeed climate related.

4 Responses to “Is the Dinosaur Extinction Story Wrong?”

  1. dumboldguy Says:

    “We Are The Asteroid” says it all—-one of your best titles for a post and one of your best posts—-too bad it only got 5508 views in three years. Is anyone paying atttention?

  2. andrewfez Says:

    Didn’t climate change help take down the Romans also? Seems like I read a preview to a history book on that last December. I’ll have to find my tablet here in a few days.

    And didn’t it also have something to do with the transition between the bronze age and iron age? Like there’s some missing history between those two times secondary to a decimation of civilization or something in Europe?

    • dumboldguy Says:

      Yeah, and the Mayans and others as well. The asteroid was a one-shot deal with the dinosaurs that obscured/added to the impact of the volcanic eruptions, but the climate change (short-lived or longer) that the eruptions caused has impacted humans repeatedly during our short time on the planet and the whole biosphere in the more distant past.

      Krakatoa, Tambora, Pinatubo, Laki, Vesuvius, Pelee….

      “In 1783 Laki, a volcano in Iceland, exploded. The 120 million tons of gas that Laki emitted during the eight-month eruption killed 20% of Iceland’s population (approx. 9,350 people), due to famine. The volcanic eruption had one of the greatest global impacts in history as the sulfur out pour caused crop failures in Europe, droughts in India and famine in Japan and Egypt. Environmental historians have even conjectured that Laki’s eruption could have helped spark the French Revolution, as famine was one of the key issues the people raised against the French monarchy”.

      “The biggest volcanic eruption in human history occurred in 1815 on the Indonesian island of Sumbawa, leaving 100,000 dead. There was between six months and three years of steaming and small eruptions after the initial one. Because of the 400 million ton cloud of gas the volcano created, the earth began to cool and 1816 became known as “The Year Without Summer” because of the low temperatures, which killed crops and led to mass starvation”. (Tambora)

  3. Kiwiiano Says:

    Just to throw another random thought into the debate: 65million years ago, India was still en route from the breakup of Gondwana, proceeding across the Indian Ocean in has been described as un-seemly haste for a subcontinent. It may be purely a coincidence but at that time it was located approximately at the antipodes of the Yucatán begging the question “Could the asteroid impact on the far side of the planet have caused the Deccan Traps eruption as the shock-waves converged?”

    That does carry an assumption that the Yucatán was also approximately where it is now….a bit beyond my knowledge of plate tectonics. And that the Traps eruption started about the time of the impact. Just a thought….

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