Scientists at the University of Bern in Switzerland noticed that heat waves in the oceans began to occur more often several tens of times due to human influence on the Earth's climate. As a result, catastrophic destruction of marine ecosystems has increased, damaging fisheries. This is reported in an article published in the journal Science.
Researchers studied satellite data from 1981 to 2017. In the first decade of the study period, 27 large heat waves occurred, lasting an average of 32 days, and water temperatures rising 4.8 degrees Celsius above long-term averages. However, 172 major events have occurred over the past decade, lasting an average of 48 days and peaking 5.5 degrees above the long-term average temperature.
Such climatic deviations over an area of 1.5 million square kilometers strongly affect the living conditions of marine organisms.
The results of the statistical analysis showed that anthropogenic climate change is the main factor in the increase in the frequency of temperature anomalies. If the temperature rises three degrees Celsius above pre-industrial values (this scenario is currently being implemented), it can be expected that extremely extreme situations in the World Ocean will occur once a year or a decade.