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GENEVA (AP) — The European Union’s Earth observation program says the ozone hole over Antarctica has swelled to its largest size and deepest level in years.Experts at the Copernicus Atmospheric Monitoring Service say a strong, stable and cold polar vortex has driven the expansion, and have called for greater international efforts to ensure countries abide by an international accord to phase out use of ozone-depleting chemicals.Vincent-Henri Peuch, who heads the service, said in a statement that the ozone hole was “definitely” among the largest in the last 15 years.“With the sunlight returning to the South Pole in the last weeks, we saw continued ozone depletion over the area,” Peuch said. “After the unusually small and short-lived ozone hole in 2019, which was driven by special meteorological conditions, we are registering a rather large one again this year, which confirms that we need to continue enforcing the Montreal Protocol banning emissions of ozone depleting chemicals.”Since the ban on halocarbons, officials say the ozone layer has slowly been recovering and data shows a trend in decreasing area of the ozone hole.Ozone depletion over the Antarctic continent was first noticed in 1985. 1217

Hawaii's East Island is no longer on the map.The island, located about 550 miles northwest of Honolulu, is part of a chain of small island groups in Papahānaumokuākea Marine National Monument. When the chain was swept by powerful storm surges from Hurricane Walaka earlier this month, East Island was submerged.The island was uninhabited, but scientists are worried because it was a refuge for two of the most endangered animals in the world: the Hawaiian green sea turtle and the Hawaiian monk seal. 508

GENEVA — The U.N. health agency says the world’s largest randomized trial of COVID-19 treatments found “conclusive evidence” that remdesivir, a drug used to treat U.S. President Donald Trump when he fell ill, has little or no effect on severe cases. The World Health Organization has announced long-awaited results of its six-month “Solidarity Therapeutics Trial” that endeavored to see if existing drugs might have an effect on the coronavirus. The study, which was not peer-reviewed, found that four treatments tested — remdesivir, hydroxychloroquine, lopinavir/ritonavir and interferon — had “ little or no effect on 28-day mortality or the in-hospital course of COVID-19 among hospitalized patients.” Remdesivir was the only drug of the four that had not largely been ruled out as ineffective in fighting COVID-19. 826

HARTFORD, Conn. (AP) -- A Connecticut city is offering free roadside assistance to bicyclists when they suffer a flat tire or other minor mechanical problems.The program in Hartford is run by the city's business improvement district and is touted as the first of its kind in the nation. It is designed to encourage bicycle commuting.Six district employees have been trained to fix flats, repair broken chains, adjust brakes and do other minor bicycle repairs. They patrol the streets on bikes and have responded to more than 40 calls from stranded bicyclists since launching the initiative in May.The city's bicycle and pedestrian coordinator says Hartford also recently adopted a "complete streets" initiative, which will require all new road improvement projects to include bicycle lanes. 798

From Parkland to Pittsburgh, we all realize that these days a mass shooting can happen anywhere, at any time.If a shooter walked into your workplace, whether an office building, a school or a movie theater, would you know how to survive?They're words too many people have heard: "We have an active shooter. Stand by for further information."Jim Hardman is a Desert Storm US Army veteran and a former police officer who teaches survival classes.In an active shooting, he says everyone should know three keywords: run, hide, fight.First: Run.Hardman says wherever you are, always know where the exit is."I walk into a store or a new business," he said, "and ask myself where can I get out?"Hear gunshots? Hardman says run if you can, without running into gunfire."If I decide to run, I move with a purpose," he said. "I'm not just running through the center or a room to try to get away."Second: Hide.Hardman says to look for a spot that might stop bullets."I position myself to where I've got that filing cabinet, that copier, something that's heavy."Hardman says never try to reason with someone already shooting. Statistics show you cannot stop him at that point."Once that active killing starts, that rationalization is out the door."Obviously, your best bet is to escape. But if you can't get out, Hardman says the next thing to do is to start barricading the room you're in, putting heavy everything at the door to keep the shooter out."I might just grab an entire desk assembly, slide it over in front of the door, " he said. 1553