Some of the consequences of climate change are obvious, according tomedia, such as the wildfires currently raging in Australia. As the planet continues to warm, the oceans are undoubtedly the most affected, absorbing most of the extra heat generated by greenhouse gas emissions. Now, a new study has revealed the worrying reality of this trend, showing that the world’s oceans are warmer in 2019 than at any time in human history.
The study was carried out by a team of international scientists from 11 institutes around the world using a new analytical technique developed by the China Institute of Atmospheric Physics, which, according to researchers, can measure temperature more accurately and dates back to the 1950s.
According to the team’s analysis, ocean temperatures in 2019 were about 0.075 degrees Celsius above the 1981-2010 average. By calculations, the scientists calculated that the ocean absorbed 228,000,000,000,000,000,000,000,000,000,000,000,000,000 joules of heat.
To give a better understanding of this long series of zeros, Lijing Cheng, the study’s first author and an associate professor at the Institute of Atmospheric Physics, made a comparison: “The energy at the time of the atomic bombing of Hiroshima was about 63,000,000,000,000 joules. Over the past 25 years, we have brought the heat to the world’s oceans equivalent to the energy generated by the 3.6 billion Hiroshima atomic bombings. This measure of ocean warming is undeniable, and this is further evidence of global warming. There is nothing reasonable to explain this warming except for the heat-absorbing gases emitted by humans. “
In addition, the scientists compared ocean warming over the past 60 years or so and compared 1955-1986 to 1987-2019. The data show that the recent warming level has increased by about 450 percent, which not only indicates that the oceans are warming, but also that the warming of the oceans is still accelerating.
“It’s important to understand how fast things change,” said John Abraham, a professor of mechanical engineering at The University of St. Thomas and co-author of the paper. If you want to understand global warming, you have to measure ocean warming. “
Since 1970, more than 90 percent of the planet’s global warming heat has been absorbed by the oceans, according to the team. This has implications for tropical storms, the severity of the weather, sea level rise and marine life. Australia’s Great Barrier Reef is an example of a recent series of severe bleaching events and a large number of coral deaths.
“The price we pay is less dissolved oxygen in the oceans, damage to marine life, storm strengthening, fisheries and marine-related economies,” Cheng said. Reduction, reuse, recycling and the transition to a clean energy society remain the main way forward. “
The study was published in Advances in The Ad Mons.