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coral reefs

Close-up view of bright green algae fronds
Posted inScience Updates

Making Sense of the Great Barrier Reef’s Mysterious Green Donuts

by Jody Webster, Mardi McNeil, Helen Bostock, Luke Nothdurft and Maria Byrne 9 March 202321 December 2023

Researchers set sail to the Great Barrier Reef to study how ring-shaped algae deposits formed and evolved, what feeds them, and the diversity of creatures that call them home.

Aerial photo of blue water dotted with tall, green islands
Posted inNews

Some Corals Are More Heat Resistant Than Thought

by Nathaniel Scharping 6 February 202321 February 2023

The vast genetic diversity of corals means there are some that may survive warming waters. Now scientists just need to find them.

Two people, flanked by two observers, stand among a field of boulders, guiding a large hand drill through the length of a white fossilized coral.
Posted inNews

El Niño Varies More Intensely Now Than in the Past Millennium

by Luis Melecio-Zambrano 15 December 20221 February 2023

Researchers found evidence for a strengthening El Niño in living and fossilized Galápagos corals.

Australia’s remote Nullarbor Plain.
Posted inNews

A Mysterious Dome Reveals Clues to Australia’s Miocene History

by Nathaniel Scharping 17 October 202217 February 2023

The Nullarbor Plain has been relatively untouched by geological forces, leaving traces of the continent’s deep past.

Air bubbles rise from a scuba diver who is looking at a coral reef.
Posted inResearch Spotlights

Unchecked Ocean Warming Threatens Many Gulf and Caribbean Corals

Rachel Fritts, Science Writer by Rachel Fritts 23 September 202223 September 2022

Gulf of Mexico and Caribbean sea surface temperatures could surpass coral bleaching thresholds in the region as soon as 2050, motivating the need for prompt mitigation, researchers say.

A diver in scuba gear holds a coring device to collect a sample from a coral head on the seafloor in clear, light blue water.
Posted inScience Updates

Clues from the Sea Paint a Picture of Earth’s Water Cycle

by Kristine DeLong, Alyssa Atwood, Andrea Moore and Sara Sanchez 4 May 202225 January 2023

New instrumentation and growing modeling needs in the Earth sciences are driving a renewed effort to compile and curate seawater oxygen isotope data in a centralized, accessible database.

Mangrove forest
Posted inNews

After a Hurricane, Coastal Systems Draw a Line in the Sand

by J. Besl 13 April 202213 April 2022

A new study finds nature can’t have it both ways: On the basis of thousands of case studies from dozens of hurricanes, there’s always a trade-off between resistance and resilience.

Posted inEditors' Highlights

Reef-Building Corals at Risk from Ocean Warming, Acidification

by Eileen Hofmann 2 March 202215 March 2022

Physiological limitations on regulating internal chemistry restricts corals’ ability to deal with ocean acidification and warming, thereby reducing resilience to continued environmental change.

A scuba diver records data next to a large pink coral.
Posted inNews

Degraded Coral Reefs May Be More Resistant to Climate Change

by Clara Chaisson 29 September 202129 March 2023

New research on Kiribati’s beleaguered atolls paints a complex picture of reef recovery.

Black sea cucumber, also known as Holothuria atra
Posted inNews

Sea Cucumbers: The Excremental Heroes of Coral Reef Ecosystems

Hannah Thomasy, Science Writer by Hannah Thomasy 16 March 20214 October 2021

Drone surveillance reveals just how big a contribution sea cucumbers make to reef habitats.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

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