The increasing amount of CO2 in the atmosphere causes more CO2 to dissolve in sea water
As CO2 dissolves in sea water, carbonic acid is formed and this lowers the pH of sea water
Lower pH of sea water has a negative impact of marine life, especially coral reefs
If sea water becomes too acidic, it reduces the amount of calcium carbonate- the main building material of exoskeletons of marine animals and coral reefs
