Mussels 'to become poisonous' through climate change - and oysters.

A study has indicated that a change in temperature of just 2 degrees celsius could make mussels, oysters and other popular shellfish too poisonous for humans to eat. 

Climate change models predict that sea temperatures will rise significantly in the next century, causing massive disruption to marine habitats.

In these areas, rainfall is also predicted to increase, reducing the salt concentration of the surface layer of the sea.