As more CO2 is put into the atmosphere, more CO2 is then absorbed into the ocean.

The amount of CO2 that is coming into the ocean is greater than the amount of CO2 that is leaving it, as well as the amount that plant life in the ocean can absorb from it.  This leads to the ocean becoming more and more acidic over time.

The absorbed CO2 travels in ocean currents that travel on the surface and deep in the ocean as a result of the ocean's thermohaline circulation.

As the CO2 travels along the surface currents the acidity of the CO2 infused ocean water can effect the development of sea life.

This increased amount of CO2 has a particularly harmful effect on coral reef growth and health, as well as the health of all the marine life that lives in the coral reefs themselves.

The increased CO2 emissions that we have created over time will have a dramatic effect on all ocean life, but especially coral reefs which are very sensitive to even the smallest change in the chemical makeup of the ocean.

If these effects on the ocean continue, there may not be any coral reefs in the future to speak of.