An international team of scientists has issued stark warnings about the critical state of Earth's oceans, confirming that ocean temperatures reached unprecedented levels last year. This alarming data comes amid the continued accumulation of greenhouse gases and global warming, which are casting a long shadow over the global ecosystem.
Comprehensive international study
The new findings are based on an extensive and in-depth study conducted by a scientific consortium comprising researchers from the Institute of Atmospheric Physics in China, the European Union's Copernicus Maritime Service, and the US National Oceanic and Atmospheric Administration (NOAA). The scientists relied on data from the Argo global network, a sophisticated system of robotic buoys and submersibles that monitor water temperatures at various depths with extreme precision.
Record numbers and affected areas
Analytical data revealed that approximately 16% of the world's ocean surface has recorded record-breaking temperatures. These increases were particularly concentrated in tropical regions, the South Atlantic, and the North Pacific. The study indicated that the average surface water temperature has risen by about 0.5 degrees Celsius compared to previous decades, a figure that climate scientists consider a serious indicator of the accelerating pace of climate change.
Scientific context: Why does the temperature rise?
To understand the gravity of this event, we must consider the pivotal role oceans play in Earth's thermal balance. Oceans absorb over 90% of the excess heat generated by carbon emissions and human activities, making them a massive "heat sink" that protects the atmosphere from catastrophic temperature increases. However, the oceans' absorption capacity is limited, and a continuous rise in their temperature leads to thermal saturation, resulting in long-term physical and environmental consequences, most notably thermal expansion of water, which directly contributes to rising sea levels and threatens coastal cities.
Climate consequences: floods and droughts
Scientists have confirmed that this ocean warming is not just a statistic, but a major driver of extreme weather events. Warmer water evaporates faster, pumping enormous amounts of moisture and energy into the atmosphere, which fuels storms and hurricanes, making them more violent and destructive.
The study directly linked ocean temperatures to recent global weather disturbances, predicting widespread and unusual flooding in Southeast Asia in 2025 due to increased evaporation and cloud condensation. Conversely, changes in ocean and air currents have caused severe droughts in the Middle East, reflecting significant disruptions in global weather patterns. Experts warn that if this upward trend continues, these phenomena could worsen, threatening food and water security in many countries.
