Explainers

Read these explainers to learn more about the state of the Reef, the threats it is facing, and how we monitor its health and progress towards the land and catchment targets.

• How healthy is the Great Barrier Reef?
• The biggest threats to the Great Barrier Reef
• How does sediment affect the Great Barrier Reef?
• The good and bad of nutrients
• How scientists know what’s happening in the catchment and on the Reef