Let&#x27;s see:  For their pH 8.2, they
have<p>&quot;4  Average global surface 
ocean pH has already fallen 
from a pre-industrial value 
of 8.2 to 8.1, corresponding 
to an increase
in acidity of about 30%.&quot;<p>So, the 8.2 was &quot;average&quot;,
&quot;surface&quot;, and &quot;pre-industrial&quot;.<p>Hmm ....  Where&#x27;d they get that
number?
How the heck was that known 
then, i.e., &quot;pre-industrial&quot;?  
And it was just &quot;surface&quot;
which is already suspect.<p>For the 8.1, is that really
comparable?  That is, measured
in the same places, at the same
times of year?  For the 8.1, 
was there some recent high sea
state for a lot of mixing
or a big rain storm with fresh
water?<p>We can&#x27;t just accept those numbers;
we need references.<p>In general, for that PDF, we need
references.  Just due to the lack
of references, the PDF gets
a grade of F due to failing
to meet just common high school
term paper writing standards.<p>That PDF is junk.<p>The authors of the PDF are
attempting a flim-flam, fraud,
scam.  That PDF is about money
and politics, not science
or pH.