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Sixty major episodes of coral bleaching have occurred between 1979 and 1990, [57] [58] with the associated coral mortality affecting reefs in every part of the world. In 2016, the longest coral bleaching event was recorded. [59] The longest and most destructive coral bleaching event was because of the El Niño that occurred from 2014 to 2017. [60]
Every year, reefs provide about $2.7 trillion in goods and services, from tourism to coastal protection, according to a 2020 estimate by the Global Coral Reef Monitoring Network.
Coral reefs around the world are experiencing global bleaching for the fourth time, top reef scientists declared Monday, a result of warming ocean waters amid human-caused climate change. Coral ...
The mass bleaching of coral reefs around the world since February 2023 is now the most extensive on record, the National Oceanic and Atmospheric Administration (NOAA) told Reuters this week. A ...
Studies found however that the results of the 2020 bleaching were not too severe, as it only affected a minimal amount of reefs, with most being in the lower to moderate levels of bleaching. [23] In early 2022 a study showed, 91% of coral in the Great Barrier Reef, have experienced some degree of coral bleaching. [24]
Recurring bleaching events are upending earlier scientific models that forecast that between 70% and 90% of the world's coral reefs could be lost when global warming reached 1.5 degrees Celsius (2 ...
Hawaii's coral reefs (e.g. French Frigate Shoals) are a major factor in Hawaii's $800 million a year marine tourism and are being affected negatively by coral bleaching and increased sea surface temperatures, which in turn leads to coral reef diseases. The first large-scale coral bleaching occurred in 1996 and in 2004 it was found that the sea ...
The NOAA coral reef authority declared the global bleaching event in April 2024, making it the fourth of its kind since 1998. The previous record from the 2014 to 2017 mass bleaching affected just ...