Like dropping five atomic bombs every second

According to a recent analysis, the world's oceans were warmer than ever since global data collection began last year. The warming of the oceans due to climate change is also accelerating, warns a team of 14 scientists from 11 institutes from different countries.

The past ten years have had the highest sea temperatures since 1950 years, with the youngest five years being the warmest, according to the study presented in the specialist magazine “Advances in Atmospheric Sciences”.

The scientists associated their warning a call to action to stop climate change. The consequences are catastrophic. Rising sea temperatures led to extreme weather conditions such as hurricanes and heavy rainfall. They are also one of the main reasons for the devastating forest fires such as in Australia, California and the Amazon region. Oxygen deprivation and damage to fish and other living beings threatened in the oceans. Thermal expansion causes the sea level to rise.

Global warming mainly goes to the oceans

The sea temperature down to two kilometers deep last year was around 0 , 075 degrees above the average of 1981 to 2010, it says in the paper , written by Cheng Lijing from the Institute of Atmospheric Physics (IAP) at China's Academy of Sciences (CAS).

The enormous amount of energy in the form of heat that man has been talking about climate change in the past 25 years in the oceans, corresponds to 3.6 billion atomic bomb explosions of the same magnitude as in Hiroshima, Japan. This means that the energy of five atomic bombs is supplied to the oceans every second.

Korallen auf einem Riff vor den Bermudas (Archivbild von 2013)

corals on a reef off the Bermudas (archive picture from 2013) Photo: dpa / IUCN

The researchers used relatively new methods of the institute to summarize the data for the warming up to 2000 sea depth. “It is important to understand how quickly things are changing,” said John Abraham, co-author and professor at the University of St. Thomas in the United States.

“If you want to understand global warming, you have to measure ocean warming.” So since 1970 More than 90 percent of global warming flowed into the oceans, while only four percent the land area and the atmosphere would have been heated.

“Only the tip of the iceberg”

“Global warming is real and it is getting worse,” said Abraham. “And that's just the tip of the iceberg of what's to come.” But humanity could do something: “We can use our energy wisely and we can diversify our energy sources,” said the researcher.

“We have the power to reduce this problem.” According to the researchers, however, the oceans will take a long time to react to changes.

“It is It is important to note that ocean warming is proceeding even if the global surface air temperature can be stabilized at or below two degrees, ”the article said, referring to the goals of the Paris Agreement.

The oceans reacted much more slowly. “But the pace and extent of ocean warming and the associated risks at least decrease with fewer greenhouse gas emissions.” (dpa)