6th mass extinctinction

Discussion in 'Environment & Conservation' started by dgrichards, Oct 19, 2021.

  1. Melb_muser

    Melb_muser Well-Known Member Donor

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    Beautiful. And spot on.

    In reference to:

    Inconvenient Facts — The Science that Al Gore Doesn’t Want You to Know by Gregory Wrightstone.

    https://willardm22.medium.com/its-easy-to-be-tricked-by-a-climate-denier-a87ba4b4a087

    We see this all the time. Deniers are very clever and very devious. Weave a riddle and a lie in with the truth. They are clutzy at first, then they get better at 'bait and switch'. Only careful scrutiny reveals their devious tactics.

    Arguing with deniers is completely fruitless in itself other than to publically shame them.
     
    Last edited: Dec 6, 2021
  2. Sunsettommy

    Sunsettommy Well-Known Member

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    I see that he couldn't support his assertions here, which would have been interesting since I have no idea MacDonald stated but you have which is why he ran away.
     
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  3. Jack Hays

    Jack Hays Well-Known Member Donor

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    Yup. I think you're right.
     
  4. Melb_muser

    Melb_muser Well-Known Member Donor

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  5. Jack Hays

    Jack Hays Well-Known Member Donor

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  6. Jack Hays

    Jack Hays Well-Known Member Donor

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  7. Jack Hays

    Jack Hays Well-Known Member Donor

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  8. Jack Hays

    Jack Hays Well-Known Member Donor

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  9. Jack Hays

    Jack Hays Well-Known Member Donor

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    A persistent influence of supernovae on biodiversity over the Phanerozoic
    Svensmark, H., 2023, In: Ecology and Evolution. 13, 3, 9 p., e9898.

    Abstract
    It is an open question what has constrained macroevolutionary changes in marine animal diversity on the time scale of the Phanerozoic. Here, we will show that supernovae appear to have significantly influenced the biodiversity of life. After normalizing diversity curves of major animal marine genera by the changes in the area of shallow marine margins, a close correlation between supernovae frequency and biodiversity is obtained. The interpretation is that supernovae influence Earth's climate, which controls the ocean and atmospheric circulation of nutrients. With this, supernovae influence ocean bioproductivity and are speculated to affect genera-level diversity. The implication is a surprisingly influential role of stellar processes on evolution.
     
    Last edited: Oct 21, 2023

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