coral bleaching

It’s Official: Coral Reefs are Facing a Mass Global Bleaching Event

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Today, a worldwide network of coral reef scientists announced that the world is currently experiencing its fourth global coral bleaching event, the second to hit reefs in the last 10 years. The announcement, made by the National Oceanic and Atmospheric Administration (NOAA) and the International Coral Reef Initiative (ICRI), comes at a time when coral reefs are facing a number of threats to their survival.  

Bleaching-level heat stress, caused by prolonged increases in anomalous ocean temperatures, has – and continues to be – extensive across the Atlantic, Pacific, and Indian Oceans.

Discovering Coral Bleaching: An Interactive Coloring Journey

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In the wake of the devastating mass bleaching events that swept across the northern hemisphere’s coral reefs during the scorching summer of 2023, the importance of coral reef education has never been more important. As students settle into their academic routines, the critical issue of coral bleaching has risen to the forefront of environmental concerns in these regions. In response to this need, we are excited to introduce the dedicated section on coral bleaching from our Reefs at Risk Activity and Coloring Book. While the entire book is a work in progress, we’ve recognized the urgency of educating students about coral bleaching and have chosen to release the book in sections to provide timely information and engage young minds in this pressing matter…

Reefs at Risk Activity & Coloring Book

Our Reefs at Risk Activity and Coloring Book teaches children about the wonders of coral reefs through fun and educational activities. The book takes students on a learning adventure through interactive activities, thought-provoking questions, and captivating coloring pages. It raises …

Coral Bleaching

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Coral reef bleaching has been in the headline news this past summer, as it was the hottest three-month period on record. As ocean temperatures soared to 32°C (90°F) around the Florida Keys and the Caribbean, coral reefs were way past their temperature threshold and started to bleach. But what happens when a coral bleaches?

Coral bleaching is a phenomenon that occurs when coral polyps expel the symbiotic (mutually beneficial) algae called zooxanthellae from their tissues, causing the corals to lose their color and turn white or pale. These algae provide the corals with essential nutrients through photosynthesis and contribute to their vibrant colors. When coral polyps expel the zooxanthellae, it not only leads to the loss of color but also affects the overall health and survival of the coral reefs…

United Nations Climate Change Conference COP26 and its Importance for Coastal Marine Ecosystems

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This week, the United Nations Climate Change Conference COP26 is taking place in Glasgow, United Kingdom. This conference will bring together world leaders so they can address global climate policy and action, and assess the progress made to address climate change that was promised in previous years. The decisions made at this meeting could have lasting consequences for marine ecosystems, such as coral reefs, that are particularly sensitive to climate change.

The primary goals of COP26 are to secure global net-zero carbon emissions by mid-century and to adapt policies to protect communities and natural habitats. Net-zero carbon emissions does not mean no carbon will be released, but that any carbon emitted will be offset by other actions taken to remove it from the atmosphere.

Certain coastal marine ecosystems, such as mangrove forests, seagrass beds, and salt marshes, are particularly good at sequestering carbon by pulling it out of the air and storing it underground. Protecting and restoring these ecosystems (as we do in our Mangrove Education & Restoration Program) can not only conserve the marine environment, it can also help combat climate change. These ecosystems can also help coastal communities naturally adapt to other impacts of climate change by protecting the coast from storms, reducing erosion, and helping the shoreline keep up with sea level rise.

Watching coral reefs die in a warming ocean

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The Chagos Archipelago is one of the most remote, seemingly idyllic places on Earth. Coconut-covered sandy beaches with incredible bird life rim tropical islands in the Indian Ocean, hundreds of miles from any continent. Just below the waves, coral reefs stretch for miles along an underwater mountain chain.

It’s a paradise. At least it was before the heat wave.

Coral Bleaching: A Shift in Perspective

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As a marine ecologist, being able to survey the reefs of the Chagos Archipelago, considered the last frontier of coral reefs, was a very exciting prospect. After many hours flying, and even more on the ship transiting to our first destination, we finally arrived in the British Indian Ocean Territory Marine Protected Area where the Chagos reefs are found. From our first dive, I knew this would be a trip to remember. Prior to this, I had participated on many of the GRE expeditions, but this one felt different. I was awestruck by the beautiful reefs with large, healthy assemblages of corals and incredible fish communities. We came across unique reefs with monospecific stands of corals unlike seen in other parts of the world. The benthic communities appeared to be thriving with a balance of coral, CCA, other algae that supported the flourishing invertebrate and fish populations.

However, later in our trip, things started to change right before our eyes. We later discovered we were the first to observe what would be one of the most catastrophic global bleaching events on record. The water was exceptionally warm, causing the beautiful coral we had been observing to show signs of stress.

KSLOF Publishes Findings from the Global Reef Expedition Mission to the Chagos Archipelago

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Today, the Khaled bin Sultan Living Oceans Foundation published our findings on the state of coral reefs in the Chagos Archipelago. This research mission gave us the chance to study some of the most isolated and well-protected coral reefs in the world. Our research, based on thousands of scientific surveys, found reefs in the Chagos Archipelago were some of the most diverse and had a higher density of fish than all of the reefs studied on the Global Reef Expedition, the largest coral reef survey and mapping expedition in history.