In the northern Atlantic Ocean, scientists are observing a persistent zone of unusual cooling.
Amid the record-breaking heat being recorded in various parts of the world, an abnormal area of low temperatures remains south of Greenland. This region has been dubbed the “cold island,” reports mk-mari.ru.
According to researchers, the phenomenon is linked to the weakening of the Atlantic Meridional Overturning Circulation (AMOC)—one of the planet’s most critical ocean current systems. It transports warm waters from the tropics northward and plays a major role in shaping the climate of Europe and the North Atlantic.
Earlier, experts proposed various theories regarding the origin of this anomaly. However, the findings of a new study published in the scientific journal Geophysical Research Letters point to a reduction in the inflow of warm waters from southern latitudes.
Scientists analyzed satellite data and temperature records collected since 1955. The study revealed that the ocean surface in the anomaly region is losing less heat than previously assumed. This may indicate a slowdown in the ocean current’s activity.
Among the potential causes, experts cite global warming and the accelerated melting of Greenland’s glaciers. Large volumes of freshwater alter the density of oceanic masses and can impact the behavior of currents.
Researchers warn that further weakening of the AMOC could lead to significant climatic changes, including harsher winters in Europe, shifts in weather patterns, and adverse effects on ecosystems.
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