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ocean acidification

A person stands among crates of shellfish on a dock on a river.
Posted inNews

Warming Gulf of Maine Buffers Ocean Acidification—For Now

by Kimberly Hatfield 3 July 20253 July 2025

Scientists constructed a 100-year history of acidity in the Gulf of Maine. They expected coastal variability but were surprised by what they didn’t find: a strong anthropogenic signal.

Chesapeake Bay, with its tree-lined waterfronts curving along the river toward the ocean, is pictured from above.
Posted inResearch Spotlights

River Alkalinization and Ocean Acidification Face Off in Coastal Waters

by Madeline Reinsel 21 May 202521 May 2025

Factors ranging from rainfall to nutrient runoff to changing mining and agricultural practices drove decades-long pH trends in the Chesapeake Bay.

White bubbles in water next to corals
Posted inNews

Corals Are Simplistic When Conditions Are Acidic

by Anupama Chandrasekaran 16 August 202416 August 2024

Increasing ocean acidity could spell trouble for fish that depend on corals’ many branches for protection.

Viewed from below, three sharks swim beneath a dense school of smaller fish in the ocean, all in shades of blue.
Posted inResearch Spotlights

In Hot Water and Beyond: Marine Extremes Escalate

Sarah Stanley, Science Writer by Sarah Stanley 28 June 202428 June 2024

A new study suggests marine life is increasingly faced with triple-threat events in which extreme water temperature, low oxygen levels, and acidification converge.

Diversidad de corales en un arrecife.
Posted inResearch Spotlights

La química del agua somera podría hacer a los arrecifes más resistente a la acidificación del océano

Sarah Stanley, Science Writer by Sarah Stanley 18 March 202418 March 2024

Estudios de los Cayos de Florida revelan variaciones geográficas y temporales en los efectos de la acidificación en corales.

Un iceberg flota en el océano cerca de Antártica.
Posted inNews

La acidez del océano antártico aumentará rápidamente a finales del siglo

by Nathaniel Scharping 11 March 202411 March 2024

Nuevos estudios muestran que los niveles de acidez podrían llegar a duplicarse para el 2100, poniendo en peligro los ecosistemas frágiles del gélido Océano Austral.

An iceberg floats in the ocean near Antarctica.
Posted inNews

Antarctica’s Ocean Acidity Set to Rise Rapidly by Century’s End

by Nathaniel Scharping 9 February 202411 March 2024

New research shows acidity levels could as much as double by 2100, imperiling fragile ecosystems in the frigid Southern Ocean.

An outcropping of coral on Australia’s Great Barrier Reef. The coral has various textures and is pink, purple, and red in tone.
Posted inResearch Spotlights

Metals Could Reveal Corals’ Past Lives

by Nathaniel Scharping 6 February 20246 February 2024

Examining the role of stable metal isotopes in biological activities such as photosynthesis provides a promising new avenue of research into how coral responds to environmental stressors.

Yellow corals in a variety of branching shapes appear against a background of light blue water.
Posted inResearch Spotlights

Shallow Seawater Chemistry May Make Reefs More Resistant to Ocean Acidification

Sarah Stanley, Science Writer by Sarah Stanley 29 January 202418 March 2024

Research from the Florida Keys reveals geographic and seasonal variation in the effects of acidification on corals.

Graph from the paper.
Posted inEditors' Highlights

Compound Extreme Events Threaten Marine Ecosystems

by Eileen Hofmann 23 January 202419 January 2024

Short-term extreme marine heat wave events superimposed on stressors from longer-term climate change produce compound extreme events that impact the Gulf of Alaska ecosystem.

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