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Home / Science / Researchers say new cuts in global CO2 emissions are essential to limit further damage to coral reefs and kelp forests – ScienceDaily

Researchers say new cuts in global CO2 emissions are essential to limit further damage to coral reefs and kelp forests – ScienceDaily



Carbon dioxide emissions kill coral reefs and kelp forests, as heat waves and ocean acidification harm marine ecosystems

Writing in Scientific Reports say researchers three centuries of industrial development (19659003) But if CO levels continue to rise as predicted The decades ahead and the lowering of the pH of seawater will have an even greater and potentially catastrophic effect [19659003TheirpredictionsofamajorstudyoftherecentlikedvolcanicCO 2 seepage off Shikine Island, Japan, bordering temperate and tropical climates.

Ocean currents in the area mean there are naturally low CO surface water values ​​ 2 similar to those that existed before the global industrial revolution. However, volcanic intersperses suggest that increasing CO 2 concentrations will affect future ecology in both the Northwest Pacific and worldwide.

Lead author Sylvain Agostini, associate professor at Tsukuba University Shimoda Marine Research Center, said: "These CO 2 infiltrations are an important window into the future. In the south of Japan, there were mass deaths of coral last year, but many People are clinging to the hope that corals will be so it is extremely worrying to see that tropical corals are so susceptible to ocean acidification as it will keep them from moving further north to escape damage from overly hot water. " 1

9659003] The research was led by scientists from the University of Tsukuba in Japan, the University of Plymouth in the UK and the University of Palermo in Italy.

Teams of SCUBA divers participated in the underwater investigations, which completed CO 2 gradients formed by volcanic seepage and showed the response of the fauna and flora to the acidification of seawater.

They found that some plant species benefited from the changing conditions, but rather smaller weeds and algae were the cover of the seabed, suffocating coral and lowering the overall marine diversity.

These species and some smaller marine animals thrive because they are more tolerant of exposure to rising CO concentrations 2 . 19659003] Jason Hall-Spencer, Professor of Marine Biology at the University of Plymouth, said: "Our research location is like a time machine." In areas with preindustrial CO content 2 the coast has an impressive amount of calcified organisms coral and oysters, however, we found significantly fewer corals and other calcified habitats in areas of intermediate CO content on the present sea surface 2 and thus there was less biodiversity People were caused due to CO 2 emissions in the last 300 years, and if we can not handle the CO 2 emissions, we will undoubtedly see a sharp deterioration of coastal systems worldwide . "

Professor Kazuo Inaba, former director of the Shimoda Marine Research Center, added," The local fishermen are ge Tense, how the acidification of the oceans will affect their livelihoods. Currents that flow past Japan bring water with a naturally low CO content 2 and fish benefit from the numerous calcified habitats around our islands. If we are able to meet the objectives of the Paris Convention on Emissions, we should be able to limit further damage to kelp forests, coral reefs and all marine ecosystems.

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Materials from University of Plymouth . Note: The content can be resized to style and length.


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