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.

In 2025, scientists warned the ‘planetary boundary’ for ocean acidification had been crossed. This is what that means and why it matters.

A critical measure of the ocean’s health suggests that the world’s marine systems are in greater peril than scientists had previously realized and that parts of the ocean have already reached ...

Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their ...

How will the climate crisis affect one of the ocean’s fiercest predators? New research published Wednesday has examined what might happen to sharks’ highly specialized, flesh-cutting teeth. As carbon ...

Scientists have warned that the planet crossed the global boundary for ocean acidification around the year 2020, according to a new study. The planetary boundary for ocean acidification is defined as ...

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 ...

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. A new partnership has been signed which formalizes a long ...

Sharks are known for their razor-sharp teeth, but a new study warns that rising ocean acidity could leave even the sea’s fiercest predators with weaker, more brittle bites. At the heart of the problem ...

TL;DR: A new report on planetary boundaries indicates that we are nearing a dangerous threshold that could render Earth's environment unsustainable for human life. Ocean waters are rapidly decreasing ...

Human activity recently sent the concentration of CO2 in the atmosphere beyond 400 ppm for the first time in more than 4 million years. This threshold may be a point-of-no-return with dire ...