CO2 can be produced by either enhanced atmospheric CO2content and subsequent fluxes into the ocean such as the present and future situation, or by enhanced hydrocarbon / organic matter fluxes
and subsequent deep-water degradation such as during past large-scale anoxic events. This CO2 will dissolve in water thus making it more acidic and resulting in ocean acidification.
De Lange G. J., 2008. Past and present variations in the C-cycle and related changes in eastern Mediterranean C deposition and preservation. In: Briand F. (Ed.), Impacts of acidification on biological, chemical and physical systems in the Mediterranean and Black Seas, pp. 39-41. Monaco: CIESM. Article.
