Deep Seabed Permafrost in the Arctic Ocean: Could It Cover 7 Million Square Kilometers?

A new study proposes deep seabed permafrost under the Arctic Ocean, possibly about 7 million km². Here is what it means and what is still unknown.

Midlatitude Ocean Warming Is Stronger in Late Summer: What a New Study Explains

Midlatitude oceans warm about 75% faster in late summer than late winter. See how the mixed layer explains it and how to explore the data.

Ocean Carbon Observing Networks: Why Coordinating Ships and Floats Matters Now

How do ships and floats track ocean carbon? Learn what a 2026 study says about coordinating the three major ocean carbon observing networks.