SEAWATER pH AND ANTHROPOGENIC CARBON DIOXIDE

Seawater pH and anthropogenic carbon dioxide is the first chapter in Climate Change, Ed: Siddhartha P. Saikia (International Book Distributors 2010).

In 2005, the Royal Society published a report titled Ocean acidification due to increasing atmospheric carbon dioxide.  The report’s principal conclusion “that average ocean pH could decrease by 0.5 units by 2100” is demonstrated here to be consistent with a linear extrapolation of very limited data.  It is also shown that current understanding of ocean mixing, and of the relationship between pH and atmospheric carbon dioxide concentration, cannot justify such an extrapolation.

(Typos in Eqs. (1) and (A10) have been corrected)

SEAWATERpH& CO2