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☆ Scientists discover ‘dark’ oxygen being produced more than 13,000 feet below the ocean surface
▼ + stars: | 2024-07-22 | by ( Katie Hunt | ) edition.cnn.com time to read: +13 min

It’s also possible, these scientists warn, that deep-sea mining could disrupt the way carbon is stored in the ocean, contributing to the climate crisis. A documentary about deep-sea mining that Sweetman watched in a hotel bar in São Paulo, Brazil, unleashed a breakthrough. However, several countries, including the United Kingdom and France, have expressed caution, supporting a moratorium or ban on deep-sea mining to safeguard marine ecosystems and conserve biodiversity. Earlier this month, Hawaii banned deep-sea mining in its state waters. Many unanswered questions remain about how dark oxygen is produced and what role it plays in the deep-sea ecosystem.

Persons: Andrew Sweetman, they’re, ”, Sweetman, ‘, SAMS, I’ve, “, Franz Geiger, ’ ”, Geiger, Charles E, Emma H, Morrison, Daniel Jones, Beth Orcutt, Orcutt, Craig Smith, Smith, Camille Bridgewater, Hawaii’s Smith, ” Geiger, Diva Amon, ” Sweetman Organizations: CNN, Clarion, Scottish Association for Marine Science, Nature, NHMDeepSea, SMARTEX, International, Authority, UN, AA, Northwestern University, Northwestern’s Weinberg College of Arts and Sciences, National Oceanography, Bigelow Laboratory, Ocean Sciences, University of Hawaii, Geological Survey, University Locations: São Paulo, Brazil, Evanston , Illinois, Southampton, England, Maine, Mānoa, Jamaica, United Kingdom, France, Hawaii, Clarion

☆ Scientists map long-lost arm of the Nile that flowed past 31 pyramids
▼ + stars: | 2024-05-16 | by ( Katie Hunt | ) edition.cnn.com time to read: +5 min

The inhospitable location has long puzzled archaeologists, some of whom had found evidence that the Nile River once flowed near these pyramids in some capacity, facilitating the landmarks’ construction starting 4,700 years ago. “This is the first study to provide the first map of the long-lost ancient branch of the Nile River.”Ghoneim and her colleagues refer to this extinct branch of the Nile river as Ahramat, which is Arabic for pyramids. Ancient Egyptians likely used the now-extinct Ahramat Branch to build many pyramids. Eman Ghoneim et alThe ancient waterway would have been about 0.5 kilometers wide (about one-third of a mile) with a depth of at least 25 meters (82 feet) — similar to the contemporary Nile, Ghoneim said. Most likely, a period of drought and desertification swept sand into the region, silting up the river, Ghoneim said.

Persons: CNN —, ”, Ghoneim, ” Ghoneim, Nick Marriner, ” Marriner Organizations: CNN, University of North, University of North Carolina Wilmington’s, Branch, National Science Foundation, French National Centre for Scientific Research Locations: Giza, University of North Carolina, Ahramat, Egypt, Paris

☆ Migration of Alaska’s earliest people linked to woolly mammoth’s movements
▼ + stars: | 2024-01-18 | by ( Jenna Schnuer | ) edition.cnn.com time to read: +6 min

The tusk belonged to a woolly mammoth later named Élmayųujey’eh or, for short, Elma. Karen Spaleta, one of the new study's coauthors, takes a sample from a mammoth tusk found at Alaska's Swan Point archaeological site. Woolly mammoth tusks grew at a consistent daily rate, with the earliest days of the animal’s life recorded in the tip of the tusks. “The US Geological Survey has done a pretty darn good job mapping rocks in Alaska,” Rowe said. Changing the picture of hunter-gatherersThe new evidence advances more than an understanding of the early relationship between woolly mammoths and humans.

Persons: Audrey Rowe, Matthew Wooller, Wooller, Karen Spaleta, Rowe, ” Rowe, “, ” Wooller, ”, Love Dalén, Dalén, ” Dalén, Julius Csotonyi, Hunter, Jenna Schnuer Organizations: CNN, University of Alaska, university’s College of Fisheries, Ocean Sciences, Geological Survey, Palaeogenetics Locations: Alaska, Canada, United States, Elma, University of Alaska Fairbanks, Swan, Stockholm, Sweden, Anchorage , Alaska

☆ Scientists captured a stunning photo of two glass octopuses intertwined. They might be having deep-sea sex.
▼ + stars: | 2024-01-17 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +3 min

AdvertisementA deep-sea expedition captured a picture of the elusive glass octopus, an almost completely transparent creature. AdvertisementA picture of a glass octopus captured during a previous expedition of the Schmidt Ocean Institute. Schmidt Ocean InstituteLittle is known about the glass octopus, which uses its near-transparency to hide from predators. It is likely, though, that they mate like other octopus species, meaning the male glass octopus delivers sperm to the female using his hectocotylus, or sex tentacle. ROV SuBastian / Schmidt Ocean Institute.

Persons: —, Eric Schmidt, Wendy Schmidt Organizations: Service, Schmidt Ocean Institute, Bigelow Laboratory, Ocean Sciences, University of Costa, SA, Field Locations: Tengosed, Costa Rica, Maine, University of Costa Rica, El Dorado

☆ The promise and risks of deep-sea mining
▼ + stars: | 2023-11-15 | by ( ) www.reuters.com time to read: +13 min

The promise and risks of deep-sea mining A vast treasure of critical minerals lies on the ocean floor. All of these factors make deep-sea mining more appealing, supporters say. Environmentalists, however, say it’s a false dichotomy, as land mining will continue whether or not deep-sea mining is allowed. Any country can allow deep-sea mining in its territorial waters, and Norway, Japan and the Cook Islands are close to allowing it. For now, the ISA's members are hotly debating the best standards for deep-sea mining.

Persons: Gerard Barron, Margo Deiye, “ We’re, ”, Barron, “, Beth Orcutt, Jason Gillham, Joe Carr, Pradeep Singh, Kira Mizell, Julia Wolfe, Katy Daigle, Claudia Parsons Organizations: International Energy Agency, P Global, Authority, United Nations, ISA, Metals Co, Russia's JSC, Blue Minerals, Exploration, Metals, Clarion, Companies, U.S . Geological Survey, Benchmark Mineral Intelligence, The Metals Co, Northwest, Maine's Bigelow Laboratory, Ocean Sciences, Impossible Metals, NOAA, Research, Aquarium Research, Bigelow Laboratory, Research Institute, Sustainability, . Geological Survey Locations: Brazil, Norway, Japan, Cook, Vancouver, Blue, Blue Minerals Jamaica, China, Hawaii, Mexico, Nauru, U.S, Russia, France, India, Poland, Tokyo, Monterey

☆ Rare octopus discovery made 2 miles below the ocean surface
▼ + stars: | 2023-06-30 | by ( Katie Hunt | ) edition.cnn.com time to read: +6 min

CNN —On a rocky outcrop almost 2 miles beneath the surface of the Pacific Ocean off Costa Rica, researchers have documented an active octopus nursery. The discovery of an active community of octopus moms and babies solved a mystery that had perplexed scientists. We saw babies being born.“The researchers also found one other smaller octopus nursery on a low-temperature hydrothermal vent on an as-yet-unnamed seamount. Scientists believe this octopus is potentially a new species of Muusoctopus, a genus of small to medium-size octopus. The scientists also plan to return to the site in December to collect octopus eggs from devices they deposited recently to find out why the creatures like to brood there.

Persons: “, ”, Beth Orcutt, Jorge Cortés, ” Orcutt, Janet Voight, Ocean Institute Voight, Orcutt, Bare, Voight Organizations: CNN, Bigelow Laboratory, Ocean Sciences, University of Costa, university’s Center for Research, Marine Sciences, Ocean, Chicago’s Field, Ocean Institute Locations: Costa Rica, Maine, University of Costa Rica, Dorado, Costa, Pacific Coast, Monterey , California

☆ An unexpected force may be speeding up glacier melt across the globe: colorful algae blooms
▼ + stars: | 2022-12-10 | by ( Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +10 min

Now he sees bright pink and red algae blooms every year. Dr. Matt DaveyScientists like Maréchal think these algae blooms are getting larger and more frequent as rising global temperatures melt glaciers worldwide. Glacier algae seems to be booming, but scientists have a lot to learnResearcher Matt Davey samples snow algae at Lagoon Island, Antarctica. Ice algae and snow algae are different types of microorganisms, and different fields of study, but they both affect glaciers. A strip of "blood snow" filled with red algae cuts across a dark bloom of purple algae in Greenland.

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