The planet is currently experiencing its fourth global coral bleaching event on record, affecting most of the Great Barrier Reef (GBR). It is the second mass bleaching in the past decade, NOAA scientists said in a press release. Across the Pacific, Atlantic and Indian Ocean basins, heat stress at levels high enough to cause bleaching […]
Quick Key Facts What Are ‘Coral Reefs’? Coral reefs consist of hundreds of thousands of coral polyps — marine animal invertebrates with hard calcium carbonate exoskeletons. Different species grow to form a variety of measurements and shapes — from the size of a pinhead to as large as a foot in diameter. Coral colonies are […]
The National Oceanic and Atmospheric Administration’s (NOAA) Coral Reef Watch has added three new alert levels to track potential risks to coral reefs and other marine life following the hottest year on record. Previously, Coral Reef Watch’s Bleaching Alert Area product stopped at a Bleaching Alert Level 2, which warned of a “risk of reef-wide […]
Following what is expected to be the warmest year on record, next year could bring massive coral bleaching events that disrupt marine ecosystems. Ove Hoegh-Guldberg, a marine studies professor at the University of Queensland, Australia, is predicting that coral reefs will experience dramatic bleaching. Hoegh-Guldberg and colleagues shared their predictions in a “Perspectives” piece for […]
Coral bleaching occurs when stressors such as changes in temperature, nutrients or light cause corals to expel the zooxanthellae algae living in their tissue, turning them white. The most common cause of coral bleaching is warming ocean temperatures due to climate change. Now, a new study by scientists from England’s University of Plymouth has found […]
The ability of corals to adapt to and survive changes in their environment, such as the recent record warming of sea surface temperatures associated with the climate crisis, appears to be more complex than scientists previously thought. In a new study, researchers made surprising discoveries about a common Caribbean coral species that could help efforts […]
As the climate crisis causes global ocean temperatures to reach record highs, heat stress can lead to an increase in coral bleaching, which makes corals more susceptible to starvation and disease. Mass bleaching events are predicted to increase in severity and frequency, so scientists are trying to find solutions to protect sensitive corals. In addition […]
In July, a historic marine heat wave descended upon the Florida Keys. Unprecedented coral bleaching ensued within the Florida Keys National Marine Sanctuary (FKNMS), which boasts the largest coral barrier reef within the continental United States. With high temperatures predicted to persist until October, scientists worry about potential harm to the entire ecosystem. View this […]
Australia’s Great Barrier Reef extends 1,429 miles over an approximate area of 133,000 square miles and is the largest coral reef system in the world. The magnificent reef is home to thousands of marine species, but for years has been under threat from pollution and climate change. The warming ocean has caused coral bleaching, and […]
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