Autor/es reacciones

Javier Lillo Ramos

Honorary collaborator of the consolidated research group on Terrestrial Global Change and Environmental Geology at Rey Juan Carlos University.

Data from the Copernicus Climate Change Service (C3S) and the Copernicus Marine Environment Monitoring Service (CMEMS) on global sea surface temperatures (SST) for this time of year are extremely worrying. Firstly, because the levels recorded exceed the record levels observed in 2023 and 2024. Secondly, because they confirm the trend towards rising ocean surface temperatures in extrapolar regions in recent years. The unprecedented record set this year may be linked to the combined effect of global warming itself and a particularly intense El Niño event.

Record figures are expected to be reached in the coming months, although the evolution of El Niño within the ocean-atmosphere context of the ENSO (El Niño-Southern Oscillation) could influence this trend. However, should these figures be confirmed, a warmer ocean surface will have a very serious impact on rainfall patterns and heatwaves, leading to a greater occurrence of very intense events with highly irregular spatial and temporal distribution, in addition to the effects on the dynamics of ocean currents, which are governed by water temperature and salinity. Such changes would in turn have severe impacts on ecosystems and fisheries productivity.

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