Coral Reefs Are Bleaching More Than Ever Right Now
Last week, the International Coral Reef Initiative (ICRI), a global partnership and forum of 100-plus governments, NGOs, and other entities working toward the preservation of the world's coral reefs and their associated ecosystems, announced that it has recorded the worst coral bleaching event on record, with 84% of the world's reefs showing effects.
Coral bleaching is a broad term conceived back in 1998 after the phenomenon was first widely noticed—or at least seriously and widely recognized—that essentially describes critically stressed corals, which turn white due to inhospitable changes in temperature and pH level, among other things.
The fourth global bleaching event on record since 1998, the current crisis, first announced in 2023, has just seriously outdone the previous event from 2014-2017 and affected about two-thirds of the world's reefs.
This current crisis is blamed on the average of ocean temperatures away from the poles, which has seen back-to-back record highs just at or above the 2.7-degree Fahrenheit (1.5-degree-Celsius) 'warming limit' above 'pre-industrial,' or average global ocean temperatures between 1850 and 1900 A.D., as called for by the 2015 Paris Agreement.The World Meteorological Organization (WMO) averaged figures from six international data sets for a composite temperature rise of nearly 2.8 degrees Fahrenheit (1.55 Celsius). This six-piece data set included various government and non-governmental bodies including the NOAA and NASA in the U.S., The E.U.'s Copernicus team, Japan, the U.K., and the privately funded Berkeley Earth, founded by a climate-change skeptic, which calculated the highest of those numbers: 2.9 degrees Fahrenheit (or 1.6 Celsius).
'We're seeing forecasts that temperatures are going to continue to stay high,' Mark Eakin, corresponding secretary for the International Coral Reef Society and retired chief of NOAA's Coral Reef Watch program, told the Associated Press. 'We just may never see the heat stress that causes bleaching dropping below the threshold that triggers a global event, so this may be the last one… We're looking at something that's completely changing the face of our planet and the ability of our oceans to sustain lives and livelihoods,' Eakin added.
What's a lowly surf rat left to do in the here and now? Reef-safe sunscreens, alternative surfboard construction, and manual and/or analog paddling of said surfboards may be about the best most of us can offer our great giver, the sea. 'The best way to protect coral reefs,' Eakin puts forth, 'is to address the route cause of climate change, and that means reducing the emissions—the human emissions—that are mostly from the burning of fossil fuels. Everything else is looking like a Band-Aid rather than a solution.'
Here's where that thorny, convoluted little term oft-hawked by libertarians and neoliberals, 'better capitalism,' could come into play. Love or hate the ocean and its temperature-dependent multitude of critters, and reject climate change, chaos, crisis, and/or warming all you like. By all means, fellow ocean-goers, continue to vote with those John Wayne dollars as always, but it's up to the nerds whose direction is at the discretion of the energy geezers and geezettes to sort out both us and our beloved reefs, whose wondrous associated peaks, slabs, peelers, and tubes none of us can deny.
Hashtags

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles
Yahoo
2 hours ago
- Yahoo
Atmospheric carbon dioxide levels break seasonal records: NOAA
Atmospheric concentrations of carbon dioxide made history last month by climbing to their highest seasonal peak available in historical records, a team of researchers reported. For the first time ever, these levels surpassed 430 parts per million (ppm) at the National Oceanic and Atmospheric Administration's (NOAA) Mauna Loa Observatory in Hawaii, which is considered the global benchmark site for tracking atmospheric carbon dioxide. The 430.2 ppm calculation for May marked a 3.5 ppm increase over May 2024's reading of 426.7 ppm, according to scientists from the Scripps Institution of Oceanography at the the University of California, San Diego, who worked together with colleagues at NOAA. 'Another year, another record,' Ralph Keeling, director of the Scripps CO2 Program, said in a statement. 'It's sad.' At an elevation of 11,141 feet above sea level, the observatory is located on the slopes of the Mauna Loa volcano and produces measurements that reflect the average state of the atmosphere for the Northern Hemisphere. Carbon dioxide, the scientists explained, acts like a blanket — trapping heat and warming the lower atmosphere, as well as altering weather patterns and fueling extreme weather events. The surge in CO2 concentrations is also contributing to acidification and causing changes in ocean chemistry that affect the survival of marine organisms, according to the researchers. A half-century of sampling at Mauna Loa, conducted by researchers at both NOAA and Scripps, have provided a baseline for tracking the increase of human-generated carbon emissions, the scientists noted. They acknowledged, however, that the station does not capture the full extent as to how carbon CO2 concentrations can vary across the planet — as stations in the Southern Hemisphere have yet to cross the 430-ppm threshold. NOAA's global sampling network, as well as 14 worldwide stations operated by the Scripps CO2 program, are also contributing to the broader planetary picture and helping identify locations of carbon sources and sinks, the researchers added. Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Yahoo
3 hours ago
- Yahoo
Lake Natron: The caustic, blood-red lake in Tanzania that turns animals to 'stone'
When you buy through links on our articles, Future and its syndication partners may earn a commission. QUICK FACTS Name: Lake Natron Location: Northern Tanzania Coordinates: -2.332009081285983, 36.03373896004504 Why it's incredible: The lake is so alkaline, it burns the skin and eyes of most animals and turns some to "stone." Lake Natron has a chemical makeup that is so harsh, it is uninhabitable for most creatures. It is a "soda" lake, meaning it has high levels of dissolved sodium and carbonate. Due to this high concentration of salts and minerals, the lake's pH can reach 10.5, which is almost as caustic as ammonia solution — and animals that die on the shores of Lake Natron are preserved as calcified mummies as a result. Lake Natron sits along the East African Rift System, a divergent tectonic plate boundary that is tearing apart the African Plate. This geology means that Lake Natron is shaped by volcanic processes, which produce large amounts of sodium carbonate and calcium carbonate. These salts and other minerals trickle down into the lake from surrounding hills and enter the water from below via hot springs, Live Science previously reported. The lake does not drain into any river or sea, so the chemical concentration stays high year-round. Few animals can survive a salt level and pH as high as Lake Natron's, and the water can severely burn the skin and eyes of creatures that try to take a sip or dip. But animals that have adapted to the conditions, including lesser flamingos (Phoeniconaias minor) and tilapia, thrive in and around the lake. In fact, Lake Natron is the world's most important breeding site for lesser flamingos, with most of East Africa's 1.5 million to 2.5 million lesser flamingos — which represent around 75% of the global population of the species — hatching at the lake, according to the Tanzania Wildlife Management Authority. Lesser flamingos' legs have tough skin and scales that prevent burns from the water. These birds build nests on islands that form in the lake during the dry season, Live Science previously reported, and their babies are safe from most predators thanks to the deadly conditions. Related: Kilimanjaro's giant groundsels: The strange plants that thrive on Africa's tallest mountain In addition to being extremely alkaline, Lake Natron is so shallow that its water temperature can reach a scalding 140 degrees Fahrenheit (60 degrees Celsius) during the hottest times of the year, according to NASA's Earth Observatory. The lake is 1.6 feet (0.5 meters) deep and 9 miles (15 kilometers) wide, but it shrinks and expands depending on the weather, with less rainfall and river input during the dry season leading it to contract (and vice versa). When the lake shrinks, microorganisms that feast on its salts multiply. Haloarchaea (salt-loving organisms that lack a nucleus) and cyanobacteria (blue-green algae) can color the lake different shades of red thanks to pigments in their cells. The same pigments give lesser flamingos their pink hue, according to NASA's Earth Observatory, because these flamingos almost exclusively eat blue-green algae. Lake Natron made headlines in 2013, when photographer Nick Brandt's images of "stone" animals on the lake's shores were published in the book "Across the Ravaged Land" (Abrams Books, 2013). The pictures showed carcasses of birds and bats that had died on the shores of the lake and were preserved by its sodium carbonate. Brandt positioned them on branches and on the water to look "alive again in death," he wrote in the book. MORE INCREDIBLE PLACES —Last Chance Lake: The unusual 'soda lake' with conditions that may have given rise to life on Earth —Hot Tub of Despair: The deadly ocean pool that traps and pickles creatures that fall in —Jellyfish Lake: Palau's saltwater pool with a toxic bottom and surface waters brimming with millions of jellyfish "I unexpectedly found the creatures — all manner of birds and bats — washed up along the shoreline of Lake Natron," Brandt wrote. "No one knows for certain exactly how they die." Birds pictured in the book include a dove and a fish eagle. These birds do not feed and breed at Lake Natron, but they live in the salt marshes and freshwater wetlands that make up the surrounding landscape. These ecosystems also host greater flamingos, pelicans, ostriches, buffalo, wildebeest and many other creatures, according to the Tanzania Wildlife Management Authority. Discover more incredible places, where we highlight the fantastic history and science behind some of the most dramatic landscapes on Earth.
Yahoo
4 hours ago
- Yahoo
Powerful laser creates super ceramics in minutes that withstand 3,632°F
Ultra-high temperature ceramics are materials capable of withstanding temperatures exceeding 2,000 degrees Celsius (3,632 degrees Fahrenheit). Because they can endure such high temperatures, these materials are essential for nuclear reactor parts, spacecraft heat shields, and hypersonic vehicles. However, their manufacturing process is time-consuming and energy-intensive. It requires massive furnaces that can reach at least 2,200 degrees Celsius (3992 degrees Fahrenheit). Using lasers, researchers from North Carolina State University have found a way to produce ultra-high temperature ceramics within minutes. Using a 120-watt laser, the new method converts a liquid polymer precursor straight into hafnium carbide (HfC), one of the most heat-resistant substances available. The process begins in an inert environment, like a vacuum chamber filled with argon. Here, a laser is applied to a liquid polymer precursor. This solution contains the complete chemical mix required to form the final ceramic: hafnium and carbon. When the laser hits the precursor, the thermal energy from the laser converts the liquid polymer into a solid, which then directly transforms into the ceramic. The entire process, known as sintering, happens so rapidly that the researchers consider it a single-step process. This process can be used in two different ways to engineer the ceramic. The first way is to apply the liquid precursor as a coating to existing objects or materials, after which the sintering can be performed. This creates protective ceramic layers without exposing the entire structure to furnace heat. By preserving the integrity of the structure, this method holds promise for materials that might be sensitive to the furnace heat. Alternatively, the method can be integrated with 3D printing systems, similar to stereolithography. The laser is mounted on a movable platform that is placed on a vat containing the liquid precursor. The laser traces the design in the precursor layer by layer, gradually building a 3D ceramic object. This approach offers precision and control over the final design. The researchers used their laser sintering method to produce pure HfC as a proof-of-concept. They discovered that their method delivers a higher yield than conventional techniques. The sintering laser method converted at least 50% of the precursor mass into ceramic, compared to 20-40% for traditional methods. Greater yield results in reduced waste and improved resource efficiency. They also observed excellent bonding of HfC coatings on carbon-fiber reinforced carbon composites. The coatings covered the surface uniformly and bonded tightly to the structure below. "This is the first time we know of where someone was able to create HfC of this quality from a liquid polymer precursor," said Prof. Cheryl Xu, co-author of the paper, in a press release. This method is more portable than traditional furnace-based techniques, although it still requires a vacuum chamber. The findings of the study are published in the Journal of the American Ceramic Society.