Quite right Benny“there is no absolute proof” (as you say) “that...

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    Quite right Benny
    “there is no absolute proof” (as you say) “that last mass extinctions were due to huge temperature and CO2 fluctuations despite the correlation”.
    I will State here though that I am not aware of the coefficients of correlation you allude to.

    I suggest you are free to suppose what you like.

    I would expect a high correlation between cigarettes and their effect on someone with lung cancer.
    A coefficient would be good to compare with that
    of the mass extinction(s) correlations of which you post.

    There may not be absolute proof but there is a lot of study in this area of tobacco smoking and lung cancer and evidence to support a very high relationship.
    Unfortunately there were no studies undertaken during the mass extinctions to provide similar levels of correlation.
    One can be absolute about that.

 
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