The Great Barrier Reef is a source of wonder, vibrant life and, for many Australians, part of our national identity. But the health and vibrancy that led to Earth’s largest living structure being dubbed one of the seven natural wonders of the world is fading, as the ocean around it heats up.

This briefing paper provides an update of what’s unfolding on Australia's Great Barrier Reef, situates this event in the broader context of ongoing change to the climate and oceans, and explains how we can do more today to better protect the reef.