Ocean temperatures also rose in 2021 – Earth – Science and Technology

The world’s oceans continued to warm in 2021. According to an international study by scientists from Italy, the United States and China, published by Advances in Atmospheric Sciences.

Scientists have estimated how much heat the world’s oceans have absorbed. According to the study, the figure increased by 14 zettajoules year-on-year. World electricity consumption is about 0.5 tons. According to scientists, the rise in ocean temperatures is an important indicator of climate change.

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“The ocean’s heat content is steadily rising and is a primary indicator of human-induced climate change,” said one of the authors and researcher Kevin Trenberth. According to the study, the highest increase was seen in the Atlantic Ocean and the Oceans in the Southern Hemisphere. The rise of scientists is all the more concerned that the La Niña phenomenon has manifested itself last year, which usually leads to a reduction in the heat of the oceans.

The rise in ocean temperatures has a number of negative effects. It contributes to the increased occurrence of hurricanes, heavy storms and extreme rains. Higher temperatures also threaten many marine animals, such as coral reefs. “It’s also important to mention that the oceans absorb about a third of the carbon dioxide emitted by human activities, but global warming reduces this capacity, leaving more CO2 in the atmosphere,” said Simona Simoncelli of the Italian Institute of Geophysics (INGV).

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Italian scientists have pointed out that the waters in the Mediterranean are also warming rapidly. The heat content has reached its maximum in 2021 since the time this value was examined. At the same time, the researchers measure the average temperature at different depths. They found that deeper waters began to warm faster. On average, water temperatures increased by 0.6 degrees between 1999 and 2021.

Source: Pravda – Veda a technika by vat.pravda.sk.

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