Computer-led analysis of tourist snaps has estimated that coral reefs contribute $36 billion per year to the global tourist economy.
Scientists used big data computing techniques to study 20 million images uploaded to image hosting website Flickr.
The pictures enabled them to create a map detailing the value of coral reefs around the world.
The authors hope that their findings will encourage the tourism industry to act responsibly, and to lobby governments on how best to manage coral reefs.
Photo: Roderick Eime/Flickr (CC BY 2.0)
To view the Creative Commons license for the image, click here.
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