Global Ocean Atlas
Pollution & reef health, mapped worldwide
An interactive monitor of the pollution weighing on each ocean and the health of the world's great coral reefs — compare any two regions and generate a report.
Regions monitored
15
7 coral reef regions
Avg. pollution index
58/100
higher = more polluted
Avg. reef health
46/100
higher = healthier
Most threatened reef
Florida Reef Tract
26/100
Ranked by pollution — worst first
How to read this: switch between Pollution and Reef Health, then hover or tap any marker for its name and click for the full breakdown with sources. Circles are ocean basins; diamonds are coral reef regions. Use Compare regions to put any two side by side, or Generate report for a shareable global summary. Scores are transparent placements of published figures (NOAA, NASA, IUCN, GCRMN, UNEP/Protected Planet) onto a common 0–100 scale, refreshed by our monitoring agent.
Turn the map greener
Cleanups, coral restoration and conscious consumption move these numbers. Help us push them in the right direction.