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☆ Scientists said the ozone hole was recovering. That good news was premature, one study claims
▼ + stars: | 2023-11-21 | by ( Angela Dewan | ) edition.cnn.com time to read: +4 min

But in a new study published Tuesday, some scientists claim it may not be recovering at all, and that the hole may even be expanding. In a paper, published by Nature Communications, they found that ozone levels have reduced by 26% since 2004 at the core of the hole in the Antarctic springtime. They used historical data to compare that behavior and changing ozone levels, and to measure signs of ozone recovery. “Altogether, our findings reveal the recent, large ozone holes may not be caused just by CFCs,” Kessenich said. “Those events have been shown to have strongly decreased the ozone hole size,” he said, “so including those events would probably have nullified any long-term negative trend.”

Persons: ”, Hannah Kessenich, didn’t, ” Kessenich, —, Martin Jucker Organizations: CNN, Nature Communications, University of Otago, University of New, Science Media Center Locations: UN, Montreal, New Zealand, El, Southern, University of New South Wales, Australia

☆ A volcano could erupt in Iceland within hours. Experts say you shouldn't cancel your flights — yet
▼ + stars: | 2023-11-13 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +6 min

AdvertisementAdvertisementThere's no reason to cancel your travel plans to Iceland, despite the country warning of potentially dangerous volcanic activity happening within the next few hours or days, experts told Insider. Iceland declared a state of emergency after an unexpected acceleration of activity at Iceland's Fagradalsfjall volcano near the town of Grindavik. It is always difficult to know exactly how a volcanic eruption will develop, but the latest developments in the peninsula took volcanologists by surprise, McGarvie said. While the Reykjanes peninsula was known to have volcanic activity, and its volcano had had fairly mild eruptions over the past decade, this activity accelerated drastically since mid-October. "It is not something that's ever been observed in Iceland, certainly monitored in Iceland, in the last few decades," he said.

Persons: —, Dave McGarvie, Raul Moreno, Andrew Hooper, Lionel Wilson, Hooper, McGarvie Organizations: Service, University of Lancaster, Emergency Management, —, Getty, Geophysics, Leeds, University of Leeds, Planetary Sciences, Lancaster University, UK's Science Media, Icelandic, Iceland Google Locations: Grindavik, Iceland, Eyjafjallajökull, Reykjavik, tktktk

☆ A volcano could erupt in Iceland within hours, but maybe don't cancel your international flights yet
▼ + stars: | 2023-11-13 | by ( Marianne Guenot | ) www.businessinsider.com time to read: +6 min

But that shouldn't affect your travel plans, though the Blue Lagoon may be off-limits, experts said. AdvertisementAdvertisementThere's no reason to cancel your travel plans to Iceland, despite the country warning of potentially dangerous volcanic activity happening within the next few hours or days, experts told Insider. Iceland declared a state of emergency after an unexpected acceleration of activity at Iceland's Fagradalsfjall volcano near the town of Grindavik. It is always difficult to know exactly how a volcanic eruption will develop, but the latest developments in the peninsula took volcanologists by surprise, McGarvie said. "It is not something that's ever been observed in Iceland, certainly monitored in Iceland, in the last few decades," he said.

☆ 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

The eastern Libyan city of Derna, the epicenter of the disaster, had a population of around 100,000 before the tragedy. A ferocious stormThe extreme rainfall that hit Libya on Sunday was brought by a system called Storm Daniel. The medicane strengthened as it crossed the unusually warm waters of the Mediterranean before dumping torrential rain on Libya on Sunday. The Derna dam is 75 meters (246 feet) high with a storage capacity of 18 million cubic meters (4.76 billion gallons). The Sebha University paper warned that the dams in Derna had a “high potential for flood risk” and that periodic maintenance is needed to avoid “catastrophic” flooding.

Persons: Cross, Storm Daniel, it’s, ”, Hannah Cloke, Ahmed Madroud, Al Jazeera, Liz Stephens, “, ” Stephens, ” Derna, Khalifa Haftar, Petteri Taalas, ” Taalas, Talaas, ” Cloke, “ We’re Organizations: CNN, International Committee, Storm, University of Reading, Libya’s Sebha University, University, Science Media Center, ISIS, Libyan National Army, United Nations, Meteorological Organization Locations: Derna, Libyan, Libya, Africa, Greece, Turkey, Bulgaria, Yugoslav, Mansour, Wadi, ”, United Kingdom

Relatives of those still missing told CNN they are terrified. Here’s what we know so far:Where did the flood hit? Morgues are stacked to capacity and dead bodies have been left on the sidewalks outside, Osama Aly, spokesperson for the Emergency and Ambulance Service in Libya, told CNN Tuesday. Analysts have said that climate forecasts gave warnings days before the storm hit Libya, but that authorities in the east did not act quickly enough. Tamer Ramadan, head of international Federation of Red Cross and Red Crescent Societies (IFRC) in Libya, told CNN Tuesday that the issue of rival governments in Libya doesn’t affect their operations.

Persons: “, Areej’s, Emad Milad, ” Milad, Osama Aly, Muammar Gaddafi, Abdulhamid Dbeibeh, Khalifa Haftar, Osama Hamad, Esam Omran, Reuters Derna, Ahmed Al, Mismari, ” Al, Al, Tamer Ramadan, ”, Jamal Alkomaty, Daniel, ” Karsten Haustein Organizations: CNN —, Authorities, United Nations ’ International Organization for Migration, CNN, Emergency, Ambulance Service, UN, of National Unity, GNU, Libyan National Army, Reuters, Arabiya, Federation of Red, Red Crescent Societies, Leipzig University, Science Media Center Locations: Derna, Libya, Tobruk, Benghazi, NATO, Tripoli, Egypt, UAE, Turkey, Italy, Algeria, Libya’s, Greece, Germany

☆ Mysterious flying objects across the US probably aren't aliens, but experts believe life is out there. Here are 13 reasons why we haven't made contact yet.
▼ + stars: | 2023-02-13 | by ( Aylin Woodward | Morgan Mcfall-Johnsen | ) www.businessinsider.com time to read: 1 min

Even if intelligent aliens aren't flying overhead, though, many experts believe they're out there. Nobel Physics Laureate Didier Queloz speaks during a press conference at the Royal Swedish Academy of Sciences in Stockholm, Sweden. Jonas Ekstromer /TT News Agency via AP"I can't believe we are the only living entity in the whole universe. Queloz had just won the Nobel prize in physics for his discovery of the first exoplanet orbiting a sun-like star. He said that his work has led him to become "absolutely convinced" that humans will detect alien life in the next 100 years.

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