Devastation of world's coral reefs could cost $1tn – video

Australia’s Climate Council is calling for further action to protect the world’s coral reefs. It has released a report putting the value of the marine environments at an astounding $1tn based on the estimated 500 million people they support in 50 countries. Damage to coral caused by warming oceans threatens tourism and other industries

• Loss of coral reefs caused by rising sea temperatures could cost $1tn globally