Science

Climate scientists alarmed at speed of ocean warming

Climate scientists alarmed at speed of ocean warming

In the next six decades the temperature is set to rise by at least six times more than it has in the last six, warn scientists. The new article, led by Dr. Lijing Cheng of the Institute of Atmospheric Physics, Chinese Academy of Sciences, highlights how the new observations along with adjusted older records now clearly show not only how the ocean is warming but that the warming is accelerating.

Researchers said this showed that, contrary to the claims of some sceptics, the world was warming at a... "The warming of the oceans is a very important indicator of climate change, and we have solid evidence that it is warming faster than we thought", said co-author Zeke house father of the University of California.

For the new study, scientists used data collected by a high-tech ocean observing system called Argo, an global network of more than 3,000 robotic floats that continuously measure the temperature and salinityof the water.

A separate study on Monday, by the European Union's Copernicus Climate Change Service, said 2018 was the fourth warmest year for global surface temperatures in records dating back to the 19th century. According to the study, sea levels could rise by 30cm by the year 2100. The first scenario falls in line with the Paris Climate Agreement's goal of reducing greenhouse gas emissions to keep the average global temperature from rising no more than 2 degrees Celsius above preindustrial levels. If no actions are taken ("business as usual"), the upper ocean above 2000 meters will warm by 2020 ZetaJoules by 2081-2100, which is about 6 times larger than the total ocean warming during the past 60 years.

The authors also note that warmer oceans mean stronger storms, hurricanes, and precipitation.

About 93% of excess heat accumulates in the world's oceans, threatening marine life and a major food supply for the planet. 2018 is likely to be the hottest year for the oceans on record, beating out 2017 which held the record.




When the ocean becomes warmer, chances of global ice melting will be also increased drastically, and it may result in floods and other catastrophes in coastal areas.

The new analysis shows warming in the oceans is on pace with measurements of rising air temperature.

For now, however, climate-changing emissions continue to rise, and 'I don´t think enough is being done to tackle the rising temperatures, ' Cheng said.

According to the investigation, the temperature of the oceans have increased in a depth of up to 2000 meters between 1971-2010 by 0.1 degrees Celsius. Many publications facing an uncertain future can no longer afford to fund it.

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