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A new study takes a look at how deep the problem of plastics in the ocean goes. Studies have looked at the quantity and spread of plastics in the world’s oceans, and now scientists are getting a better idea of how much of that litter is sinking down to the sea bed.The study, from Australia’s national science agency CSIRO, estimates there is 14 million metric tons of microplastics sitting on the ocean floor. That would be more than 35x as much plastic scientists believe is floating on the surface of the ocean.Microplastics are defined as pieces of plastic that have been worn down by the ocean and other elements into tiny fragments, smaller than 5 millimeters.The team collected samples of deep-sea sediments up to 9,800 feet deep from sites around the Great Australian Bight off the coast of South Australia. The robotic submarine took 51 samples.Scientists found an average of 1.26 microplastic pieces per gram of sediment in the samples.Dr. Denise Hardesty, Principal Research Scientist and co-author of the study, said they were "surprised to observe high microplastic loads in such a remote location.""Our research found that the deep ocean is a sink for microplastics," Hardesty said. "By identifying where and how much microplastic there is, we get a better picture of the extent of the problem."Around 150 million metric tons of plastic are already floating in our oceans -- with an additional eight million tons entering the water each year, according to the World Economic Forum.The researchers say most of the plastic dumped into the ocean likely ends up on the coasts, rather than on the ocean's surface or floor.The samples were taken in the spring of 2017; the study was published in Frontiers in Marine Science on Monday. 1750

A new study out of a pediatric medical center in Chicago suggests that young children do not only spread COVID-19 more efficiently than adults, but they could be major drivers in the pandemic as schools start to reopen.The report was published at the end of July and examined concentrations of COVID-19 in the nasopharynx, or the upper region of the throat that connects nasal passages. According to the results, children ages 5 and younger who develop mild to moderate symptoms have 10 to 100 times as much COVID-19 in their nasopharynx as adults.“This is a very complex issue involving not just the virus, but everything else,” said Dr. Kwang Sik Kim, director of pediatric infectious disease at Johns Hopkins University Hospital. "We don’t have any real data to indicate to schools what they should do, what is the best recipe they need to follow.”The study raised concerns about the erratic behavior of children and how it could play a factor in the virus’ spread, reading, "Behavioral habits of young children and close quarters in school and daycare settings raise concern for SARS-CoV-2 amplification in this population as public health restrictions are eased. In addition to public health implications, this population will be important for targeting immunization efforts as SARS-CoV-2 vaccines become available.”“Don’t, under any circumstance, even think about opening that school for in-class instruction until you’ve got the virus under control,” said Lily Eskelsen Garcia, president of the National Education Association.Eskelsen Garcia teaches 39 6th-graders in Salt Lake City and says unless the infection rate of a community is below 5 percent, as outlined by the CDC and WHO, school districts should not even consider opening for in-person instruction.Currently, the infection rate in the United States is 7.8 percent."If you open a school before you get the infection rate under control, you will turn that school into the community’s super-spreader,” said Eskelsen Garcia.“Make a decision for today based on the information available today, and then act differently when you have data tomorrow. I think that’s the right approach,” said Dr. Kim. 2170

A recent study published Wednesday in the New England Journal of Medicine suggests that antibodies might protect people who've already had COVID-19 from being reinfected for at least six months.Researchers looked at 12,541 healthcare workers at Oxford University Hospitals in the United Kingdom and were followed for up to 31 weeks.In the study, researchers investigated the incidences of COVID-19 infection by conducting polymerase chain reaction (PCR) tests on the healthcare workers who had tested positive and negative, including both symptomatic and asymptomatic cases.The study results showed that 11,364 did not have antibody levels, and 1,265 had positive results, which also included 88 healthcare workers in whom seroconversion occurred during follow-up. A total of 223 anti-spike–negative health care workers had a positive PCR test (1.09 per 10,000 days at risk), up to 100 during screening were found to be asymptomatic, and 123 were to have symptoms, the study found.Researchers said that individuals who had anti-spike antibodies had no symptomatic infections. 1083

A Sichuan Airlines co-pilot was sucked halfway out of an aircraft's cockpit when its windshield shattered during a flight, Chinese state media has reported.Captain Liu Chuanjian and his crew were praised for making an emergency landing after the incident, which occurred at 30,000 feet on an Airbus A319 flight from the Southern city of Chongqing to Lhasa, the capital of Tibet."The situation was very critical. The windshield was blown off at a 10,000-meter-high altitude. The aircraft was in a state of low pressure and a temperature was minus 30 to minus 40 degree celsius," Jiang Wenxue, a Civil Aviation Administration (CAA) official, was quoted as saying by state news agency Xinhua.The co-pilot almost got sucked out of the cockpit but kept calm, according to Chinese state television station CCTV."There was no sign before the windshield burst. Just a huge noise," Captain Liu was reported as saying by state news agency China News Service."When I looked at the other side, the co-pilot was partially blown out of the aircraft. Luckily, he had the belt buckled up. Many devices were malfunctioned and the plane was jolting strongly. It was very difficult to control," he added.The co-pilot suffered scratches and a sprained wrist, the CAA said, adding that a flight attendant was also injured. None of the plane's 119 passengers were injured and the aircraft safely landed at Chengdu Shuangliu Airport in southern China.However, passengers and crew described frightening scenes on board the plane during the incident."All people were shouting onboard. We just tried our best to reassure the passengers and make everyone believe us that we could touch down safely," Zhou Yanwen, the injured flight attendant, was quoted as saying by China News Service."It happened as the flight attendants were serving our meals. People were shocked," the agency quoted an unnamed passenger as saying.Zhou said that some air stewardesses were thrown into air and that food was strewn about.The windshield shattered over the southwest city of Chengdu about an hour and twenty minutes after flight 3U8633 took off at 6.27 am local time (1027 GMT), the CAA said in statement released by CCTV.An investigation into the incident is underway.Chinese people praised the pilot as an "epic hero" on social media, according to China News Service."The crew were level-headed and dealt with the crisis decisively and properly, avoiding a major disaster, which shows the superb technical skills and professionalism," the CAA added.  2523

A man’s love for man’s best friend is a powerful force. Kaleb Benham from Grass Valley took on a 350 pound bear that was attacking his rescue dog, “Buddy.” Kaleb said he heard a growl the saw the bear dragging buddy “by his head.” So he tackled the bear and punched it pic.twitter.com/XAhTrS2AEC— Anna Giles (@AnnaGilesTV) December 4, 2020 347