Fish are losing their sense of smell as rising carbon emissions is turning water they live more acidic. CO2 is absorbed by seawater forming carbonic acid. Due of ocean acidification, fish will lose some of their smelling sense, making it more difficult to survive.

• Fish use their sense of smell for essential things such finding food and safe parts of ocean to re-produce, recognising each other and most importantly sniffing out danger so they can avoid predators.
• Since1800’s ocean CO2 levels have risen by 43%. It is predicted to be more than double current level by the end of the century.