What happens on Queensland's farms and in its rivers doesn't stay on land. The connection between water quality and reef health is one of the most important - and most politically contested - stories in GBR science.
A healthy coral reef is one of the loudest places in the ocean. Scientists are now using sound to monitor reef health - and to help larvae find their way home.
The Great Barrier Reef is not a collection of individual organisms - it's a web of dependencies so intricate that pulling on any thread changes everything else.
Below 30 metres, beyond the reach of most recreational divers, lies a twilight reef world that scientists are only beginning to understand - and that may hold the key to the GBR's future.
Once a year, on nights following the November full moon, the Great Barrier Reef releases billions of gamete bundles in a synchronised mass spawning event that looks like a blizzard falling upward.
The science of climate change on the Great Barrier Reef is not abstract. It has specific numbers, specific timelines, and specific consequences - and understanding them changes how you think about the reef.
Coral bleaching isn't death - not immediately. It's a stress response, a last resort, and understanding the biology behind it changes how you see a white reef entirely.