The ocean plays a fundamental role in the global climate system, as it contributes largely to climate regulation by absorbing more than 25% of the carbon dioxide humans produce annually. It must therefore be considered as an essential part of mitigating climate change and solving climatic issues. Also, climate change deeply affects the marine environment, and preventing further climate change is important in order to maintain a healthy ocean. The mutual interaction between ocean and climate remains a key aspect of environmental science in order to tackle ecological problems. (read more)

http://www.unesco.org/new/en/oceans-day