Climate change increases the temperature of oceans, nutrients, chemical water organization, and wind
The system changes the nature of ocean currents.
Increase in the temperature of the oceans - by increasing the temperature of the Earth.
Acidification of oceans - ocean water interacting with carbon dioxide creates carbonic acid.
Slaughter in ocean water level - due to the melting of polar ice.
Changes in ocean current - due to increasing in temperature and melting of porous ice
Extreme climatic events - such as cyclones, storms, etc.
sinking coastal cities
Coral bleaching etc.
Hence climate change affects the ecosystem of oceans extensively.