World Assessment Report II
April 29 , 2021
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- The United Nations recently released the Second World Ocean Assessment report.
- It is the work of hundreds of scientists appointed by the members of United Nations from all over the world.
- It follows the initial report, “World Ocean Assessment I” published in 2015.
Findings
- The number of dead zones in the oceans have doubled.
- It has increased from 400 in 2008 to 700 in 2019.
- 90% of the Mangrove Seagrass and marsh plant species are facing extinction.
- 30% of seabird species are facing the threat of extinction.
- Only 10% of the ocean has been explored and studied.
- The heat content in the oceans has more than doubled since 1990.
- 15% of the Sandy beaches are seeing retreating shorelines.
Dead Zone
- Dead Zone is a common term used for Hypoxia.
- The largest dead zone is located in the Arabian sea.
- This covers almost 63,700 square miles in Gulf of Oman.
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