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Articles on Coral reefs

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Bleached coral at the Keppel Islands in the southern Great Barrier Reef in early March 2024. © AIMS | Eoghan Aston

Global coral bleaching caused by global warming demands a global response

The first global bleaching event was in 1998 and the fourth is now under way. Until we curb the emissions driving global warming, the pressure on coral reefs will continue to increase.
Matteo Collina

Using photos to create 3D models is helping us understand – and protect – complex marine environments

Photogrammetry, a technique where 3D information is extracted from photographs, is reducing the guesswork in counting – and understanding – the world below the ocean surface.
The bow of the U.S. Coast Guard cutter Duane, a decommissioned ship deliberately sunk off Florida to serve as an artificial reef. Stephen Frink via Getty Images

Not all underwater reefs are made of coral − the US has created artificial reefs from sunken ships, radio towers, boxcars and even voting machines

Artificial reefs are structures that humans put in place underwater that create habitat for sea life. A new study shows for the first time how much of the US ocean floor they cover.
A bleaching event at a reef in Key Largo, Fla. The complex interplay of temperature and cloud cover is at the heart of cloral bleaching events. (Liv Williamson/University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science via AP)

How clouds protect coral reefs, but will not be enough to save them from us

Understanding how both cloud cover and temperature work to promote coral bleaching provides valuable insight into how reefs will change over various climate scenarios.

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