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According to South China Sea Institute of Oceanology researchers, the sea level in the Ocean has risen by 150 mm since 1900. The study, conducted by researchers from the Chinese Academy of Sciences (CAS) and other institutions, focused on Porites coral, According to Xinhua News Agency, is a widespread coral in the South China Sea with a rapid expansion, distinct annual growth layer, and sympathetic response to changes in seawater environment. The researchers investigated the mechanism of correlation between the oxygen stable isotopes of Porites coral and the South China Sea’s sea level, sea surface salinity, sea surface temperature, and rainfall, and reconstructed the sea level record at an annual resolution.
According to the study, sea level fell by 0.73 mm per year between 1850 and 1900, then rose by 1.31 mm per year between 1900 and 2015. The South China Sea’s sea-level rise has accelerated, rising by 3.75 mm per year since 1993, according to Xinhua.
The study discovered that sea-level changes in the South China Sea from 1850 to 1950 may have been caused by a combination of solar activity and greenhouse gases, and that greenhouse gases may have been the dominant factor behind the fast rise of sea level since 1950.
According to the news agency, the study was published in the journal Palaeogeography, Palaeoclimatology, and Palaeoecology.
The SCS is important not only for China, but also for other countries in the region and around the world, as it transports approximately USD 4 trillion, or one-third of global maritime trade.
