10/07/2026
The 10th Copernicus Ocean State Report was released yesterday, and the message is clear: our ocean is changing rapidly, and not for the better.
The report brings together more than 4 decades of data from satellites, buoys and ocean sensors, with contributions from 636 authors, 214 publications and 258 organizations across 37 countries.
Some of the key takeaways:
🌡️ The ocean is getting hotter
In 2024, the Mediterranean and Black seas had record-breaking periods of unusually warm water. Some lasted more than 30 days.
🌊 Sea levels can change dramatically during storms
A powerful storm caused water levels in part of the Baltic Sea to drop by 153 cm in just one event.
🏝️ Island communities are facing several changes at once
Rising seas, warmer oceans and stronger tropical storms are creating growing challenges for many island nations.
🧊 The Arctic is changing the ocean around it
The Barents Sea became much less salty between 2016 and 2022 as more freshwater entered the region and Arctic ice changed.
🦠 Even tiny ocean life is changing
About 5% of the global ocean has seen lasting changes in when phytoplankton, the tiny organisms at the base of the marine food web, appear each year.
Read the full report or summary here
https://marine.copernicus.eu/access-data/ocean-state-report/ocean-state-report-10👇