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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

☆ Stunning images of ocean life in proposed deep-sea mining zone
▼ + stars: | 2024-04-02 | by ( Katie Hunt | ) edition.cnn.com time to read: +5 min

Sometimes they have been seen/observed/known before, but not collected or formally described,” said Regen Drennan, a postdoctoral marine biologist at London’s Natural History Museum. If deep-sea mining follows the same trajectory as offshore oil production, more than one-third of these critical metals will come from deep-ocean mines by 2065, the federal agency estimated. 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. Along with the transparent unicumber, the creature is a type of sea pig within the scientific family called Elpidiidae. 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.

Persons: James Cook, ”, Regen Drennan, Drennan, wasn’t, ” Drennan, It’s Organizations: CNN, Clarion, National Oceanography Centre, Geological Survey, Authority, United Nations Convention, NHMDeepSea Locations: London, United Kingdom, France

☆ Global ocean heat has been at record levels every single day for the last year
▼ + stars: | 2024-03-18 | by ( Laura Paddison | ) edition.cnn.com time to read: +3 min

But he added that the records were unsurprising, given that ocean heat is being supercharged by human-caused global warming, a series of marine heatwaves and El Niño, a natural climate pattern marked by higher-than-average ocean temperatures. Global ocean warmth can add more power to hurricanes and other extreme weather events, including scorching heat waves and intense rainfall. Ocean heat sets the stage for more ferocious hurricanes. “Measuring ocean warming allows us to track the status and evolution of planetary warming,” Schuckmann told CNN. But, she added, it’s currently impossible to predict when ocean heat will drop below record levels.

Persons: ”, Joel Hirschi, El, Karina von Schuckmann, Brian McNoldy, ” Hirschi, ” Schuckmann, it’s, Derek Van Dam Organizations: CNN, National Oceanic, Atmospheric Administration, University of Maine’s, National Oceanography, University of Miami Rosenstiel School Locations: Australia, France

☆ Mars could be driving ‘giant whirlpools’ in the Earth’s deep oceans, new study finds
▼ + stars: | 2024-03-12 | by ( Laura Paddison | ) edition.cnn.com time to read: +5 min

CNN —Mars may be around 140 million miles away from Earth, but the red planet is influencing our deep oceans by helping drive “giant whirlpools,” according to new research. The sediments revealed that deep-sea currents weakened and strengthened over 2.4 million-year climate cycles, according to the study published Tuesday in the journal Nature Communications. For the Earth, this interaction with Mars translates to periods of increased solar energy — meaning a warmer climate — and these warmer cycles correlate with more vigorous ocean currents, the report found. The authors describe these currents, or eddies, as “giant whirlpools” that can reach the bottom of the deep ocean, eroding the seafloor and causing large accumulations of sediments, like snowdrifts. Deep-sea sediments build in continuous layers during calm conditions but strong ocean currents disrupt this, leaving a visible stamp of their existence.

Persons: Adriana Dutkiewicz, sedimentologist, ”, Dietmar Müller, Müller, “, ” Müller, Joel Hirschi Organizations: CNN, Nature Communications, University of Sydney, Atlantic, National Oceanography

The East Coast Is Sinking New satellite-based research reveals how land along the coast is slumping into the ocean, compounding the danger from global sea level rise. SINKING BY 2050 RISING –5 +5 cm –20 –15 –10 0 Atlantic City is sinking up to 4 centimeters per decade. SINKING BY 2050 RISING –5 +5 cm –20 –15 –10 0 Several hotspots in Maryland are sinking over 10 centimeters per decade, while other areas are rising. SINKING BY 2050 RISING –5 +5 cm –20 –15 –10 0 Charleston, S.C., which is affected by groundwater pumping, is sinking up to 5.7 centimeters per decade. Portland, Maine 47.0 cm 45.8 cm +40 cm 40.6 cm Relative sea level rise 33.8cm +30 cm +20 cm SUBSIDENCE +10 cm Change since 1925 Global sea level rise 1925 2023 1925 2023 1925 2023 1925 2023 Sources: Dangendorf (2019) and the National Oceanography Centre.

Persons: ”, Leonard Ohenhen, Kenneth Miller, Inner Harbor BOSTON Charles, “, Miller, “ We’ve, Sandy, we’ve, Sandy Hertz, Hertz Organizations: Virginia Tech, U.S . Geological Survey, NASA, Rutgers University ., Places New, National Oceanography, The New York Times, East Boston Charleston East Cambridge Airport, Inner, Pleasure, Roxbury, Boston City Archives, Boston Public Library, Boston Groundwater Trust, PNAS, Rutgers University, American Society of Civil Engineers, Army Corps of Engineers, Maryland Department of Transportation Locations: Boston, New York City, Long, Maryland, Hampton, Va, Charleston, S.C, Florida, Miami, Places New York City, N.Y, Atlantic City, N.J, Mass, Portland , Maine, York City, New Jersey, East, Inner Harbor BOSTON, Pleasure Bay, Savin, Roxbury Grove, Shirzaei, Cape Canaveral, exurbs, Delaware, Atlantic, East Coast

Photos You Should See View All 21 Images“It also depends on the rate of climate change we are inducing as humanity,” van Westen said. The Dutch team simulated 2,200 years of its flow, adding in what human-caused climate change does to it. They found after 1,750 years “an abrupt AMOC collapse,” but so far are unable to translate that simulated timeline to Earth's real future. "This value is getting more negative under climate change,” van Westen said. The world should pay attention to potential AMOC collapse, said Joel Hirschi, division leader at the United Kingdom's National Oceanography Centre.

Persons: ”, Rene van Westen, “, ” van Westen, it's, van Westen, Stefan Rahmstorf, ” Rahmstorf, Tim Lenton, ” Lenton, Wei Cheng, Joel Hirschi, ” Hirschi, ” ___ Read, Seth Borenstein Organizations: Southern, Utrecht University, United Nations, Earth Systems, Potsdam Institute, Climate Research, ” University of Exeter, National Oceanic, Atmospheric Administration, NASA, Pacific, U.S ., United, National Oceanography, Associated Press Locations: Europe, Netherlands, Germany, Greenland, Americas, Africa, Florida, U.S, U.S . East Coast, AP.org

☆ Atlantic Ocean currents may be on the verge of collapse, which could plunge Europe into a deep freeze, a new study shows
▼ + stars: | 2024-02-09 | by ( Seth Borenstein | Associated Press | ) www.businessinsider.com time to read: +7 min

“It also depends on the rate of climate change we are inducing as humanity,” van Westen said. AdvertisementThe Dutch team simulated 2,200 years of its flow, adding in what human-caused climate change does to it. They found after 1,750 years “an abrupt AMOC collapse,” but so far are unable to translate that simulated timeline to Earth's real future. "This value is getting more negative under climate change,” van Westen said. The world should pay attention to potential AMOC collapse, said Joel Hirschi, division leader at the United Kingdom's National Oceanography Centre.

Persons: ”, Rene van Westen, “, Bob Edme, ” van Westen, it's, van Westen, Stefan Rahmstorf, ” Rahmstorf, Tim Lenton, Thwaites, ” Lenton, Wei Cheng, Joel Hirschi, ” Hirschi, ” ___ Read Organizations: Service, Southern, Utrecht University, AP, United Nations, Earth Systems, Potsdam Institute, Climate Research, University, Exeter, NASA, National Oceanic, Atmospheric Administration, Pacific, U.S ., United, National Oceanography Locations: Europe, Northwestern, Netherlands, Germany, Greenland, Americas, Africa, Florida, U.S, U.S . East Coast

☆ Crucial ocean current system could be on course to collapse with catastrophic impacts on global weather
▼ + stars: | 2024-02-09 | by ( Laura Paddison | ) edition.cnn.com time to read: +6 min

This new study provides an “important breakthrough,” said René van Westen, a marine and atmospheric researcher at the University of Utrecht in the Netherlands and study co-author. It’s the first time a collapse has been detectable using these complex models, representing “bad news for the climate system and humanity,” the report says. “But we can at least say that we are heading in the direction of the tipping point under climate change,” van Westen said. The AMOC’s collapse could also cause sea levels to surge by around 1 meter (3.3 feet), van Westen said. “(It) adds significantly to the rising concern about an AMOC collapse in the not too distant future,” he said.

Persons: ”, René van Westen, van Westen, ” van Westen, Stefan Rahmstorf, Rahmstorf, Joel Hirschi, Jeffrey Kargel, Hirschi, “ Organizations: CNN, Northern, University of Utrecht, Southern, Potsdam University, National Oceanography, Planetary Science Institute Locations: Atlantic, Netherlands, Europe, Germany, Arizona

The study, published in the journal Nature Climate Change on Monday, found no matter the degree of warming this century, the melting of the West Antarctic Ice Sheet will speed up as warmer water in the Amundsen Sea erodes ice shelves bordering the ocean. These ice shelves buttress ice further inland, acting as a cork in a bottle that stops their flow into the ocean. The collapse of the West Antarctic Ice Sheet is one of nine global climate 'tipping points' scientists identified in 2009. If the ice sheet were to fully melt, average global sea levels would rise by more than a metre. Antarctic Sea ice saw its lowest maximum extent on record this winter.

Persons: Lauren Dauphin, Kaitlin Naughten, Tiago Segabinazzi Dotto, Gloria Dickie, Ros Russell Organizations: NASA, REUTERS, British Antarctic Survey, West, National Oceanography, Thomson Locations: Antarctica, Handout, Amundsen, London

☆ Climate change: Rapid melting of West Antarctica ice now 'unavoidable,' study finds
▼ + stars: | 2023-10-23 | by ( Rachel Ramirez | ) edition.cnn.com time to read: +5 min

CNN —Rapid melting of West Antarctica’s ice shelves may now be unavoidable as human-caused global warming accelerates, with potentially devastating implications for sea level rise around the world, new research has found. Even if the world meets ambitious targets to limit global heating, West Antarctica will experience substantial ocean warming and ice shelf melting, according to the new study published Monday in the journal Nature Climate Change. They act like buttresses, helping hold ice back on the land, slowing its flow into the sea and providing an important defense against sea level rise. While there has been growing evidence ice loss in West Antarctica may be irreversible, there has been uncertainty about how much can be prevented through climate policies. “The thing that’s depressing is the committed nature of sea level rise, particularly for the next century,” Scambos told CNN.

Persons: ”, Kaitlin Naughten, Naughten, ” Naughten, Ted Scambos, ” Scambos, Scambos, Tiago Segabinazzi Dotto, I’ve Organizations: CNN, British Antarctic Survey, University of Colorado Boulder, “, National Oceanography, Science Media Center Locations: West Antarctica, Antarctica

☆ Earth's deep blue oceans are fading and changing color — and scientists aren't sure why
▼ + stars: | 2023-09-04 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +5 min

Two decades of satellite images have revealed that more than 56% of the world's oceans have seen significant changes in color. Scientists fear these color changes could be harbingers of yet another global crisis in ocean food chains as the planet warms. Greener oceans mean more life — and that's not necessarily goodThe color of the oceans can tell us a lot about their health. The ocean's color depends on what's in the upper layer of the water column. In the latest study, scientists used imagery from NASA's Aqua satellite, which has been monitoring ocean color changes for more than two decades.

Persons: It's, it's, Cael, that's, Stephanie Dutkiewicz, Dutkiewicz, I've, Michael J Behrenfeld Organizations: Service, Nature, National Oceanography Center, Guardian, MIT's Department of, Planetary Sciences, Center for Global Change Science, CNN, Oregon State University Locations: Southampton

☆ Climate change is making our oceans change color, new research finds
▼ + stars: | 2023-07-12 | by ( Jack Guy | ) edition.cnn.com time to read: +4 min

CNN —The color of the ocean has changed significantly over the last 20 years and human-caused climate change is likely responsible, according to a new study. They analyzed color variation data from 2002 to 2022 and then used climate change models to simulate what would happen to the oceans both with additional planet-heating pollution and without. The color changes matched almost exactly what Dutkiewicz predicted would happen if greenhouse gases were added to the atmosphere – that around 50% of our oceans would change color. Dutkiewicz, who has been running simulations that showed the oceans were going to change color for years, said she is not surprised at this finding. Dutkiewicz told CNN it was difficult to say whether color changes could become visible to humans if the process continues.

Persons: Artur Widak, Stephanie Dutkiewicz, Dutkiewicz, ” Organizations: CNN, National Oceanography Center, Massachusetts Institute of Technology, MIT’s Department of, Planetary Sciences, Center for Global, Aqua

☆ Why this beautiful rainbow sea slug is such an incredible scientific find
▼ + stars: | 2023-05-19 | by ( Chris Panella | Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: +3 min

The rainbow sea slug is beautiful, vibrant, and an extremely rare find. The rainbow sea slug — scientific name Babakina anadoni — was found by rock pool enthusiast Vicky Barlow last weekend. Rainbow sea slugs are on the moveDiscovering the sea slug so far north is probably a testament to climate change. Rainbow sea slugs have been cited farther north than usual likely due to climate change. One video shared by the Rock Pool Project shows the rainbow slug in action, moving slowly along a rock surface.

In a long-awaited report, a panel of independent experts convened by the British government said both those theories were unlikely, and that it had been "unable to identify a clear and convincing single cause" for the deaths. "We've ruled things out, but we've not been able to confidently rule things in...," panel member Tammy Horton, a researcher at the National Oceanography Centre, told an online press briefing. It was "about as likely as not" that a pathogen new to UK waters caused the deaths, it said, though no new pathogen was detected. Several of the factors it considered might in combination also have been a cause, it added. British Environment Minister Therese Coffey said on Friday she would consider if further analysis by government scientists might establish a conclusive cause.

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