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☆ Earth’s inner core has slowed so much it’s moving backward, scientists confirm. Here’s what it could mean
▼ + stars: | 2024-07-05 | by ( Mindy Weisberger | ) edition.cnn.com time to read: +10 min

Comparing the timing of seismic signals as they touched the core revealed changes in core rotation over time, confirming the 70-year rotation cycle. But the depth and inaccessibility of the inner core mean that uncertainties remain, she added. The mysterious region where the liquid outer core envelops the solid inner core is especially interesting, Vidale added. “We might have volcanoes on the inner core boundary, for example, where solid and fluid are meeting and moving,” he said. Because the spinning of the inner core affects movement in the outer core, inner core rotation is thought to help power Earth’s magnetic field, though more research is required to unravel its precise role.

Persons: seismologist Inge Lehmann, —, ”, Lauren Waszek, “, ” Waszek, John Vidale, “ We’ve, ” Vidale, we’ve, what’s, Vidale, Seismologists, Lehmann, Waszek, ” Mindy Weisberger Organizations: CNN, James Cook University, Earth Sciences, University of Southern California’s Dornsife, of Letters, Arts and Sciences, Geological Survey, Scientific Locations: Australia, New Zealand, South Sandwich, South

☆ Tiger shark regurgitates whole echidna in shocking first sighting
▼ + stars: | 2024-06-06 | by ( Amarachi Orie | ) edition.cnn.com time to read: +2 min

CNN —In what is thought to be the first encounter of its kind to be witnessed by scientists, a tiger shark has been spotted vomiting up a dead echidna whole off the coast of an Australian island. He said it is “rare” that tiger sharks throw up their food, although they can when stressed. A different shark that the team caught and tagged also made a “surprising” regurgitation, throwing up half a dugong, according to the release. Tiger sharks have gluttonous appetites, a habit of scavenging and are reputed for man-eating. Tiger sharks are found in warm oceans worldwide.

Persons: “, Nicolas Lubitz, ‘, ”, “ I’ve, Lubitz Organizations: CNN, James Cook University, Foundation Locations: Australia, North Queensland, Windward Oahu, Hawaii

☆ How climate change could be driving ‘killer’ cold outbreaks in oceans
▼ + stars: | 2024-04-15 | by ( Rachel Ramirez | ) edition.cnn.com time to read: +4 min

CNN —It’s not just ocean heat that’s affecting marine life – new research shows extremely cold events are welling up and causing mass mortalities. And the same planet-warming pollution that’s driving the climate crisis is likely to blame for these “killer events” on the other end of the temperature spectrum. The world’s oceans have been plagued by unprecedented heat over the past year, fueling concerns for marine life. “Climate change is actually really complex,” said Nicolas Lubitz, lead author of the study and a researcher at James Cook University in Queensland, Australia. He said seasonal upwelling events are common in that area, with water temperature dropping quickly.

Persons: CNN — It’s, ”, Nicolas Lubitz, “ It’s, Lubitz, “, Ajit Subramaniam, School’s Lamont, it’s, ” Subramaniam Organizations: CNN, welling, James Cook University, East Australian, Columbia Locations: Queensland, Australia, South Africa

☆ Australia’s Great Barrier Reef suffers ‘extensive’ coral bleaching, as scientists fear seventh mass bleaching event
▼ + stars: | 2024-02-29 | by ( Helen Regan | ) edition.cnn.com time to read: +7 min

CNN —The southern Great Barrier Reef is suffering from extensive coral bleaching due to heat stress, the reef’s managers said Wednesday, raising fears that a seventh mass bleaching event could be unfolding across the vast, ecologically important site. Jonas Gratzer/LightRocket/Getty ImagesThe Great Barrier Reef’s managers plan to extend aerial and in-water surveys across the entire reef over the coming weeks. Hotter ocean temperatures caused severe mass bleaching at the Great Barrier Reef in 2016, 2017 and 2020. Last year, the UNESCO World Heritage Committee decided not to add the Great Barrier Reef to its list of sites “in danger,” despite scientific evidence suggesting the risk of another mass bleaching event. Greenpeace’s Ritter said that following the decision, “the Australian government promised to do everything it can to protect the Great Barrier Reef.

Persons: Mark Read, Elliot, Jonas Gratzer, ”, Neal Cantin, Maya Srinivasan, ” Srinivasan, ” David Ritter, “, ” Ove Hoegh, Greenpeace’s Ritter Organizations: CNN, Park Authority, Australian Institute of Marine Science, El, James Cook University, Marine Park Authority, Greenpeace Australia Pacific, Foundation, Oceanic, UNESCO World Heritage Committee, Labor Locations: Keppel, Gladstone, Queensland, Australia, Cairns, Florida, Caribbean

☆ ‘Travelling Telescope’ inspires children to look to the sky
▼ + stars: | 2023-11-22 | by ( Arya Jyothi | ) edition.cnn.com time to read: +5 min

“Instead, I was inspired too.”In 2006, Murabana joined a teacher training program called Global Hands-On Universe, where she led a space education project. Here, she realized she wanted children in Africa to be as exposed to opportunities as children in the US were. Daniel Chu Owen and Susan Murabana, co-founders of Travelling Telescope. Daniel Chu Owen, Travelling Telescope“There’s a satisfaction you get from going to a school, talking to the children, and seeing their reaction and their anticipation,” said Murabana. Daniel Chu Owen, Travelling TelescopeBut there is also a more personal motivation for Murabana’s work — combatting the perception that astronomy is a Western science.

Persons: Susan Murabana’s, “, ”, Murabana, —, Daniel Chu Owen, Susan Murabana, ‘, Owen Organizations: CNN, Cosmos Education, James Cook University, University of California, Kenyan, Travelling Telescope, Kenya Space Agency, International, European Space Agency, Travelling Locations: Kenya, Australia, Africa, Malindi, Western, Ghana, Mali

☆ BMC Ecology and Evolution image competition 2023 reveals nature's more obscure side
▼ + stars: | 2023-08-17 | by ( Issy Ronald | ) edition.cnn.com time to read: +2 min

CNN —A photo of a bright orange fungus growing on deadwood, with its striking color resplendent against the darkness, has been crowned winner of this year’s BMC Ecology and Evolution image competition. The image competition showcases the “intersection between art and science,” organizers said, in all its weird and wonderful forms. An image depicting an embryonic dinosaur developing within an egg between 72 million and 66 million years ago won the Paleoecology category. It was submitted by Jordan Mallon from the Candian Museum of Nature and created by Wenyu Ren from Beijing, China. A selection of the winning and runner-up images can be viewed in the gallery above.

Persons: Cornelia Sattler, palaeontologists, Roberto García, João Araújo, Victor Huertas, Jordan Mallon, Wenyu Ren Organizations: CNN, BMC, Macquarie University, University of Lund, New, Botanical Garden, James Cook University, Australia, Coral, Candian Museum of Nature Locations: deadwood, Australia, Roa, Sweden, Guinea, Beijing, China

☆ Great Barrier Reef stays off UNESCO ‘in danger’ list but hot El Niño summer looms
▼ + stars: | 2023-08-01 | by ( Hilary Whiteman | ) edition.cnn.com time to read: +7 min

“A lot of climate scientists are shocked by the fact that it wasn’t put on the list,” Kimberley Reid from the ARC Centre of Excellence for Climate Extremes and Monash University told CNN. Covering nearly 133,000 square miles (345,000 square kilometers), the Great Barrier Reef is home to more than 1,500 species of fish and 411 species of hard corals. Environment minister Tanya Plibersek told reporters Tuesday she made no apology for lobbying UNESCO to keep the Great Barrier Reef off the “in danger” list. Bleaching events and global warming have done significant damage to the Great Barrier Reef. Tourists, divers and marine biologists enter and exit the waters of the Great Barrier Reef on August 10, 2022 on Hastings Reef, Australia.

Persons: El, wasn’t, Kimberley Reid, I’m, ”, Reid, Tanya Plibersek, Michael Robinson Chavez, ” Plibersek, that’s, Terry Hughes, El Niño, ” Hughes, David Booth, government’s, “ Will, Booth, Jodie Rummer, “ That’s Organizations: Australia CNN —, UNESCO World Heritage, ARC Centre, Excellence, Extremes, Monash University, CNN, “, Heritage, UNESCO, Labor, Washington Post, Coral Reef, James Cook University, Australian, of Meteorology, Oceanic Atmospheric Administration, World Meteorological Organization, UTS, Reef Society, Federal Government Locations: Brisbane, Australia, Paris, Hastings Reef

☆ Canadian lake sediments reveal start of Earth's Anthropocene age, scientists say
▼ + stars: | 2023-07-11 | by ( David Stanway | ) www.reuters.com time to read: +5 min

Presence of plutonium and other evidence was found in core samples of the Crawford Lake sediments. The Anthropocene epoch is proposed as a chapter in Earth's history reflecting the transformation of the planet's climate and ecology as a result of human activity. The Anthropocene epoch has not yet been formally recognised by a scientific body called the International Commission on Stratigraphy. The scientists obtained core samples of sediment at Crawford Lake and sediments, soils, corals and ice samples at the other 11 sites. Crawford Lake sediments provided a record of accelerating changes that have unfolded in the past few decades, including traces of fly ash produced by burning fossil fuels.

Persons: Crawford, Colin Waters, we've, Waters, Francine McCarthy, Andrew Cundy, Bill Laurance, David Stanway, Will Dunham Organizations: University of Leicester, International, Crawford Lake, Brock University, Industrial, University of Southampton, James Cook University, Thomson Locations: Crawford, Canada's Ontario, Toronto, Britain, Canada, Australia, Singapore

☆ Our quest to make AI love us back is futile — and dangerous
▼ + stars: | 2023-03-06 | by ( Cheryl Teh | ) www.businessinsider.com time to read: +8 min

But that's futile, experts say, because the AI of today can't feel empathy, let alone love. We've spent years trying to get AI to love us back. Experts told Insider that it's futile to expect the AIs that exist right now to love us back. During a simulation in October 2020, OpenAI's GPT-3 chatbot told a person asking for psychiatric help to kill themselves. Halpern, the UC Berkeley professor, told Insider AI-based relationships are perilous also because the entity can be used as a money-making tool.

☆ Australia argues against ‘endangered’ status for Great Barrier Reef
▼ + stars: | 2022-11-29 | by ( The Associated Press | ) www.nbcnews.com time to read: +4 min

CANBERRA, Australia — Australia’s environment minister said Tuesday her government will lobby against UNESCO adding the Great Barrier Reef to a list of endangered World Heritage sites. The report, which recommended shifting the Great Barrier Reef to endangered status, followed a 10-day mission in March to the famed reef system off Australia’s northeast coast that was added to the World Heritage list in 1981. “We’ll very clearly make the point to UNESCO that there is no need to single the Great Barrier Reef out in this way” with an endangered listing, Plibersek told reporters. “If the Great Barrier Reef is in danger, then every coral reef in the world is in danger,” Plibersek said. The Great Barrier Reef accounts for around 10% of the world’s coral reef ecosystems.

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