Global Coral Reef Monitoring Network 5, released a report, affected by factors such as climate change, the global number of coral reefs between 2009 and 2018 decreased by 14%.
Reuters said that this is equivalent to about 11,700 square kilometers of coral reefs die.
This is the first Global Coral Reef Monitoring Network released six reports on the status of coral reefs of the world, since the first report in 2008.
Report Summary at Wan coral reefs worldwide in 73 countries and regions, nearly 2 million observations observation points between 1978 and 2019, for the first time quantitative analysis, come to these conclusions. Survey called the biggest scale in the same category. This report shows that between 2009 and 2018, the number of coral loss in different parts of the world are quite different, the smallest decline in East Asia, 5%, the Eastern Tropical Pacific is as high as 95%.
The report said, with sea surface temperatures rise, coral is facing a crisis of survival.
Author of the report, director of the Australian Institute of Oceanography Hades Paul Terry said: "Climate change is the greatest threat to global coral reef …… a marked decrease worrying trend, we can predict that as the climate continues warming, this trend will continue. "the report said that coral reefs are important marine ecosystems, although only covering% of the world’s sea floor, but at least 25% of marine species dependent on coral reefs survive, life associated with hundreds of millions of dollars. Goods and services provided by coral reefs annual valuation of $ trillion, including $ 36 billion reef tourism.
However, coral reefs are among the most fragile ecosystems respond to human factors on earth, where global warming caused by warming waters most affected, resulting in a large number of coral bleaching. The report notes that large-scale coral bleaching is the biggest factor in the destruction of the world’s coral reefs, "only the 1998 coral bleaching events has led to reduction in the number of the world’s coral 8%."
According to the report saying, marine pollution, overfishing, coastal development is not sustainable, also threaten coral reefs.
However, the report pointed out that in view of 2019 has increased the number of partial areas of coral, if mitigate threats to the survival of coral reefs, the number of coral is expected to return to past levels.
According to AFP, the world’s average temperature higher than before the industrial development Celsius increase, the Intergovernmental Panel on Climate Change earlier forecast that if this figure reached degrees C, 70-90% of coral will die. (Wang Xin Fang) (designed Xinhua News Agency feature articles) (Editor: Su Ying Xiang, Yang Mu) share to allow more people to see.