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Huge stretches of coral reef around the world are turning a ghostly white this year amid record warm ocean temperatures. On Monday, the U.S. National Oceanic and Atmospheric Administration ...
Scientists estimate that over next 20 years, about 70 to 90% of all coral reefs will disappear. With primary causes being warming ocean waters, ocean acidity, and pollution. [3] In 2008, a worldwide study estimated that 19% of the existing area of coral reefs had already been lost. [4]
The warming of ocean waters has caused coral bleaching and the degradation of coral reefs, which are vital to marine biodiversity and fisheries. Coral reefs support a large proportion of the world's fish species, providing food and livelihoods for millions of people. As ocean temperatures rise, the symbiotic relationship between corals and ...
A major concern for marine biologists is the collapse of coral reef ecosystems. [40]). An effect of global climate change is the rising sea levels which can lead to reef drowning or coral bleaching. [40] Human activity, such as fishing, mining, deforestation, etc., serves as a threat for coral reefs by affecting the niche of the coral reefs.
Conservation status for warm-water reef-building corals was analysed for the International Union for Conservation of Nature’s (IUCN) Red List.
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 ...
A 2020 study reports that by 2050 global warming could be spreading in the deep ocean seven times faster than it is now, even if emissions of greenhouse gases are cut. Warming in mesopelagic and deeper layers could have major consequences for the deep ocean food web, since ocean species will need to move to stay at survival temperatures. [69] [70]
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.