Cold, O 2 -saturated water sinking at high latitudes and spreading at depth. Changes in atmospheric CO 2 conc. 280 ppm Fossil-fuel burning Deforestation in 1998, CO 2 conc. 360 ppm Response of ocean to increased atm. HCO 3- 3.
Detailed notes start here Atmospheric gases.
The major gases in the atmosphere are nitrogen and oxygen, with smaller amounts of argon and carbon dioxide. This most abundant dissolved CO2 species is bicarbonate. Role of biological processes in the distribution of CO 2 and O 2 in sea water. Respiration is the process that all organisms use to recover the chemical energy stored in organic compounds. On an ocean-wide basis, the rates of photosynthesis and respiration are nearly balanced.