XPost: alt.global-warming, alt.atheism   
   From: Dawn.Belle.Flood@gmail.com   
      
   On 2/14/2026 9:34 AM, Paul Aubrin wrote:   
   > Le 14/02/2026 à 16:19, Dawn Flood a écrit :   
   >>> No, because of the risk of spurious correlations.   
   >>> https://tylervigen.com/spurious-correlations   
   >>>   
   >>> Derivation alleviate this risk. The long-term trend should be visible   
   >>> in the shape of the cloud of annual dots.   
   >>>   
   >>> For example, here is the shape of the cloud of monthly dots between   
   >>> Mauna-Loa CO2 and Ocean temperatures 7 months before. The correlation   
   >>> is not perfect, but quite visible.   
   >>> https://i.postimg.cc/tC7Gyvds/ESRLCO2-HADSST-7months.png   
   >>>   
   >>>   
   >>   
   >> No, you're are wrong.  Here is the regression equation:   
   >   
   > You have first to detrend the two series. Then you can try to find a   
   > correlation. You will find :   
   > 1) there is a correlation between ocean temperatures and Mauna-Loa   
   > concentrations six or seven months later. Thus, either temperatures   
   > cause CO2, or they both follow a common cause.   
   > 2) there is no correlation between "anthropic" emissions and temperatures.   
   >   
   > NB : I followed a course on signal detection techniques, the professors   
   > almost daily warned us about "frequency zero" spurious correlations.   
   >   
      
   Are you capable of doing a scatter plot??  You have the abscissa, the x   
   axis, and the ordinate, the y axis.   
      
   Let's try Boyle's Law, shall we?  Here it is:  PV = K.  You don't need   
   to take derivatives, okay?  Let's put pressure on the y axis and volume   
   on the x axis.  (Are you with me?)  And, then, let's plot pressure   
   versus volume.  As you decrease one, the other increases.  (Get it?)   
      
   With the right equipment, you can do this experiment at home, but, be   
   careful!  You do NOT want to create a "pressure bomb", but with the   
   right apparatus, you can do this experiment for yourself just by using   
   air!  Now, if you do this, you will get a scatter plot where decreasing   
   volume will result in increasing pressure, and vice-a-versa, which is   
   the basis of refrigeration and air conditioning!  You can also try the   
   same experiment with Charles' law, but I will let you look that one up   
   for yourself.   
      
   By the way, here's the ideal gas law:  PV = nRT.  Once again, you do not   
   need to take derivatives of anything.  Just do the plotting, extend the   
   graph to the left, and you'll get a number for absolute zero!   
      
   And, so, try it and get back to us!!   
      
   Dawn   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)