The Southern Ocean: wild, beautiful, home to amazing wildlife. It also helps fertilise the oceans and regulate the planet's climate. But as the Earth warms and we pump more greenhouse gases into the atmosphere, what's happening to this remarkable place?

To find out, we speak to Dr Andrew Constable from the University of Tasmania, the lead author of the first Marine Ecosystem Assessment for the Southern Ocean, a comprehensive report on the present and future health of this vast sea. He explains what policymakers need to do now to protect the Southern Ocean.

Image: Black-browed Albatross. Gregory "Slobirdr" Smith/Flickr.