"Not only is our land burning, but so is our seas "they have a fever," writes the German Association for the Conservation of Nature (NABU). This is a critical situation for the seas, which have recently experienced extreme temperatures. At the beginning of August, the average surface temperature of the oceans, according to the American platform "Climate Reanalyzer", reached almost 21 degrees Celsius - a value that has never been reached in the last 40 years of recording. The consequences of climate change are becoming increasingly clear. While so far research  focused on the sea surface, which ends at a depth of one meter, a team of scientists from the University of Algarve in Faro, Portugal, has now dared to look deeper. The result is worrying: heat waves that spread in greater water depths are not only more intense, but also last longer.

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