Since Mr. Hunt continues citing a “30% increase in ocean
acidity” caused by a change in pH from 8.2 to 8.1, in the interest of
scientific accuracy this error demands correction. The equation for the pH of
an aqueous solution is logarithmic and defined as pH = -log[ H+ ] . There are 14 orders of magnitude that define
the pH scale from zero to fourteen units as per this equation, so a lowering of
alkalinity of .1 units pH cannot equal a 30% increase in acidity as claimed. It
is actually .1/14 or only 0.7%. The natural variation of ocean pH can be up to
5% in either direction, making meaningless a variation plus or minus 0.7%.
Neutral pH is 7.0, so acidification is not appropriate
terminology. A reduction in pH from 8.2 to 8.1 is a lowering of alkalinity, not
an increase in acidification.
“There has historically been much more CO2 in our atmosphere
than exists today. For example, during the Jurassic Period (200 mya), average CO2 concentrations were about 1800 ppm or about 4.7 times higher
than today. The highest concentrations of CO2 during all of the Paleozoic Era
occurred during the Cambrian Period,
nearly 7000 ppm -- about 18
times higher than today.
“The Carboniferous
Period and the Ordovician Period
were the only geological
periods during the Paleozoic Era when global
temperatures were as low as they are
today. To the consternation of global warming proponents, the Late
Ordovician Period was also an Ice Age while
at the same time CO2 concentrations then were nearly 12 times higher than
today-- 4400 ppm. According to
greenhouse theory, Earth should have been exceedingly hot. Instead, global
temperatures were no warmer than today.”
No comments:
Post a Comment