Great Barrier Reef recovery has stalled. What's next for coral reefs?

There's lots of news coming from the Great Barrier Reef at the moment, with the UN deciding again not to list the reef as a World Heritage site in danger, and new surveys showing that coral recovery after recent mass bleaching events has stalled. Meanwhile extreme global sea temperatures are causing coral bleaching on reefs.To make sense of all these headlines, we speak to University of Technology Sydney researcher Dr Emma Camp, whose research focuses on helping coral reefs adapt to the changing climate.