A four-year record from the heart of the Ross Ice Shelf shows how subtle changes could shape future sea level rise, ocean ecosystems – and

Every calendar year since 2019, ocean temperatures have reached new record highs. 2025 was no exception, according to a new study. The study, published Jan.

For most of modern history, the open ocean has been treated as a place apart. Beyond the 200-nautical-mile limits of national jurisdiction, it was governed

The expansion of Arctic shipping, scramble for seafloor mining and overfishing are all straining international relationships. But the powers of diplomacy go beyond ocean treaties…Read

Marine conservationist Callum Roberts explains the significance of the new high seas treaty, and the grey areas it still leaves for our oceans…Read More

They’ve been called “bubble chasers,” and “seep seekers,” though they sometimes call themselves “flare hunters.” They’re a small group of scientific specialists searching the world’s

Researchers at the California Academy of Sciences kept busy throughout 2025. Along with collaborators from across the globe, they described 72 new-to-science species from six

In December 2022, nearly 200 nations committed to protecting 30% of Earth’s lands and waters by 2030. As of 2025, about 9.6% of the world’s

Young Earth was a blue planet covered in oceans, much like today. But the atmosphere was a lethal cocktail of gases, with no oxygen…Read More