While the livelihoods of more than three billion people depend on oceanic resources, the ocean also provides a large fraction of the oxygen we breathe and absorbs greenhouse gases, mitigating their ...

Researchers have revealed that most coralline algae experience negative effects from ocean acidification. Analysis of previous studies showed that changes in ocean chemistry can lead to declines in ...

A new assessment finds that the world’s oceans crossed the safe threshold for acidification in 2020, breaching a key planetary boundary and posing serious threats to marine life. Ocean acidification ...

The ocean has absorbed a significant portion carbon dioxide emissions from human activities, decreasing the pH of the water and leading to a suite of chemical changes collectively known as ocean ...

Scientists have known for decades that soaring atmospheric carbon dioxide emissions are causing changes in ocean chemistry, threatening marine life and ecosystems. In June 2025, a study found that ...

MAYOTTE, INDIAN OCEAN - NOVEMBER 2017: Diver from the Mayotte Marine Natural Park carry out a survey on the reef, called REEFCHECK, on November 27, 2017, Mayotte, Comoros archipelago, Indian Ocean.

If you would like to learn more about the IAEA’s work, sign up for our weekly updates containing our most important news, multimedia and more. The ocean plays a major role in the carbon cycle and ...

An unhealthy sea butterfly, or pteropod, showing effects of ocean acidification including ragged, dissolving shell ridges on upper surface, a cloudy shell in lower right quadrant, and severe abrasions ...

Ocean acidification is the lowering of seawater pH over time, as the ocean absorbs carbon dioxide (CO 2) from the atmosphere. The pH scale is used to measure how acidic or basic a water-based solution ...

Reference article: Facts about ocean acidification. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Ocean acidification refers to the process of ...