Month: January 2023

A U.N.-led study released Monday shows a hole in the protective layer of ozone over Antarctica is on track to fully recover in about four decades, thanks to the global phasing out of nearly 99% of banned ozone-depleting substances. The report, published every four years, was presented Monday at the 103rd Annual Meeting of the American Meteorological Society in Denver. The report indicates that if current policies remain in place, the ozone layer is expected to recover to 1980 values — before the appearance of the ozone hole — by around 2066 over the Antarctic, by 2045 over the Arctic and by 2040 for the rest of the world. It shows the Antarctic ozone hole has been slowly improving in area and depth since the year 2000. The scientific assessment monitors the progress of the Montreal Protocol, a global agreement reached in 1987 and put into place in 1989, intended to protect the Earth’s ozone layer by phasing out the chemicals that deplete it, often used as propellants in household products or in air conditioning. In a statement, U.N. Environmental Program Ozone Secretariat Meg Seki said the ozone recovery data in this latest study is “fantastic news.” “The impact the Montreal Protocol has had on climate change mitigation cannot be overstressed,” she said, calling the treaty “a true champion for the environment.” The latest assessment has been made based on extensive studies, research and data compiled by experts from the U.N. World Meteorological Organization; the U.N. Environment Program; the National …

One year after Australia deported Serbian tennis champion Novak Djokovic for refusing to get vaccinated, Australian Open tournament officials say players this year will not be tested for COVID-19 and would even be allowed to compete even if they had the virus.  Tournament director Craig Tiley told reporters Monday they are telling players and tournament staff to stay away if they feel ill, but otherwise they will not be tested. If they have already been tested, they will not be required to disclose their status.  Tiley said the tournament just wanted to “follow what is currently in the community.”  The new policy is a stark change from the strict protocols of the past two years, when spectators were banned from the tournament, matches were played in a bio-secure “bubble,” and nine-time tournament champion Djokovic was not allowed to play.  Last week, during a Cricket match in Sydney between South Africa and Australia, Australian Cricketer Matt Renshaw was allowed to play in a five-day test match despite testing positive for COVID.  Riley said, “It’s a normalized environment for us and, not dissimilar to cricket, there will potentially be players that will compete with COVID.”  The more relaxed rules for sports reflects Australia’s more relaxed rules regarding COVID-19. At the height of the pandemic, the nation — and Melbourne in particular -— endured some of the longest and strictest lockdowns.    But in the past year, mandates regarding safeguards such as testing, and mask-wearing have been replaced.  Some information for this report was …

China will not include Pfizer Inc’s Paxlovid in an update to its list of medicines covered by basic medical insurance schemes as the U.S. firm quoted a high price for the COVID-19 drug, China’s Healthcare Security Administration (NHSA) said Sunday.    The COVID-19 antiviral drug is currently covered by the country’s broad health care insurance scheme under temporary measures the regulator introduced in March last year as outbreaks rose.    But authorities held talks with Pfizer in recent days to decide whether to include it in the latest version of their list, which they update annually.    Inclusion on the list means a drug is accessible via state insurance schemes, which will boost volumes but comes with the condition that manufacturers lower prices. Past rounds have seen drugmakers cut prices by as much as 62% after negotiations with officials.    “We will continue to collaborate with the Chinese government and all relevant stakeholders to secure an adequate supply of Paxlovid in China. We remain committed to fulfilling the COVID-19 treatment needs of Chinese patients,” Pfizer said in a statement, without elaborating.    The NHSA said Paxlovid would continue to be eligible to be paid for by state medical insurance until the current planned end-date to the temporary measures of March 31.    While the talks on Paxlovid failed, they succeeded with two other COVID-19 treatment drugs — herbal medication Qingfei Paidu granules and Chinese drugmaker Genuine Biotech’s Azvudine — which will be included in the list’s update, the regulator said.    Three years into the pandemic, China …

Is the metaverse closer than we think? It depends on whom you ask at CES, where companies are showing off innovations that could immerse us deeper into virtual reality, otherwise known as VR. The metaverse — essentially a buzzword for three-dimensional virtual communities where people can meet, work and play — was a key theme during the four-day tech gathering in Las Vegas that ends Sunday. Taiwanese tech giant HTC unveiled a high-end VR headset that aims to compete with market leader Meta, and a slew of other companies and startups touted augmented reality glasses and sensory technologies that can help users feel — and even smell — in a virtual environment. Among them, Vermont-based OVR Technology showcased a headset containing a cartridge with eight primary aromas that can be combined to create different scents. It’s scheduled to be released later this year. An earlier, business-focused version used primarily for marketing fragrances and beauty products is integrated into VR goggles and allows users to smell anything from a romantic bed of roses to a marshmallow roasting over a fire at a campsite. The company says it aims to help consumers relax and is marketing the product, which comes with an app, as a sort of digital spa mixed with Instagram. “We are entering an era in which extended reality will drive commerce, entertainment, education, social connection, and wellbeing,” the company’s CEO and co-founder Aaron Wisniewski said in a statement. “The quality of these experiences will be measured by how immersive …

Thailand will require international travelers to show proof they are fully vaccinated for COVID before flying to Thailand, according to the country’s aviation regulator, as it prepares for more tourists after China reopened its border on Sunday. The Civil Aviation Authority of Thailand said in a statement Saturday that starting early Monday, all foreign arrivals starting early on Monday must prove they are vaccinated or provide a letter certifying that they have recovered from COVID within six months. Unvaccinated travelers must show a medical certificate explaining why they have not received the vaccine. CAAT said airlines would be responsible for checking documents before passengers board and has released a list of how many doses are required for various types of COVID-19 vaccines on its website. The new measure will remain in effect at least until the end of January, CAAT said. The vaccination requirement was scrapped by Thailand last October but has been revived as China reopens its border following the easing of its zero-COVID policy. The first commercial flight from China to Thailand, Xiamen Airlines flight MF833, will arrive to Bangkok from Xiamen on Monday carrying 286 passengers, government spokeswoman Traisuree Taisaranakul said Sunday. Foreigners traveling to Thailand from a country where a negative reverse transcription polymerase chain reaction test result is a condition for entry are required to show proof of health insurance that covers COVID-19 treatment, the Health Ministry said. The new entry requirements do not apply to Thai passport holders or passengers transiting through Thailand. …

China lifted quarantine requirements for inbound travelers Sunday, ending almost three years of self-imposed isolation even as the country battles a surge in COVID cases. The first people to arrive expressed relief at not having to undergo the grueling quarantines that were a fixture of life in zero-COVID China. And in Hong Kong, where the border with mainland China was reopened after years of closure, more than 400,000 people were set to travel north in the coming eight weeks. Beijing last month began a dramatic dismantling of a hardline zero-COVID strategy that had enforced mandatory quarantines and punishing lockdowns. The policy had a huge impact on the world’s second-biggest economy and generated resentment throughout society that led to nationwide protests just before it was eased. At Shanghai’s Pudong International Airport, a woman surnamed Pang told AFP on Sunday she was thrilled with the ease of travel. “I think it’s really good that the policy has changed now, it’s really humane,” she told AFP. “It’s a necessary step, I think. COVID has become normalized now and after this hurdle everything will be smooth,” she said. Chinese people rushed to plan trips abroad after officials last month announced that quarantine would be dropped, sending inquiries on popular travel websites soaring. But the expected surge in visitors has led more than a dozen countries to impose mandatory COVID tests on travelers from the world’s most populous nation as it battles its worst-ever outbreak. China has called travel curbs imposed by other countries “unacceptable,” …

A 38-year-old retired NASA satellite is about to fall from the sky. NASA said Friday the chance of wreckage falling on anybody is “very low.” Most of the 5,400-pound (2,450-kilogram) satellite will burn up upon reentry, according to NASA. But some pieces are expected to survive. The space agency put the odds of injury from falling debris at about 1-in-9,400. The science satellite is expected to come down Sunday night, give or take 17 hours, according to the Defense Department. The California-based Aerospace Corp., however, is targeting Monday morning, give or take 13 hours, along a track passing over Africa, Asia the Middle East and the westernmost areas of North and South America. The Earth Radiation Budget Satellite, known as ERBS, was launched in 1984 aboard the space shuttle Challenger. Although its expected working lifetime was two years, the satellite kept making ozone and other atmospheric measurements until its retirement in 2005. The satellite studied how Earth absorbed and radiated energy from the sun. The satellite got a special send-off from Challenger. America’s first woman in space, Sally Ride, released the satellite into orbit using the shuttle’s robot arm. That same mission also featured the first spacewalk by a U.S. woman: Kathryn Sullivan. It was the first time two female astronauts flew in space together. It was the second and final spaceflight for Ride, who died in 2012. …

 U.S. health officials on Friday approved a closely watched Alzheimer’s drug that’s been shown to modestly slow the early stages of the brain-robbing disease, albeit with potential safety risks that doctors and patients will have to weigh carefully. The drug, Leqembi, is the first that’s been convincingly shown to slow the decline in memory and thinking that defines Alzheimer’s by targeting the disease’s underlying biology. The Food and Drug Administration approved it specifically for patients with mild or early cases of dementia. An uncommon success Leqembi, from Japan’s Eisai and its U.S. partner Biogen, is a rare success in a field accustomed to failed experimental treatments for the incurable condition. The delay in cognitive decline brought about by the drug likely amounts to just several months, but some experts say it could still meaningfully improve people’s lives. “This drug is not a cure. It doesn’t stop people from getting worse, but it does measurably slow the progression of the disease,” said Dr. Joy Snider, a neurologist at Washington University in St. Louis. “That might mean someone could have an extra six months to a year of being able to drive.” Snider stressed that the medicine, pronounced “leh-KEM-bee,” comes with downsides, including the need for twice-a-month infusions and possible side effects such as brain swelling and bleeding. Approval came via FDA’s accelerated pathway, which allows drugs to launch based on early results, before they’re confirmed to benefit patients. The agency’s use of that shortcut has come under increasing scrutiny from government …

The Biden administration is proposing tougher standards for a deadly air pollutant, saying that reducing soot from tailpipes, smokestacks and wildfires could prevent thousands of premature deaths a year.  A proposal released Friday by the Environmental Protection Agency would set maximum levels of 9 to 10 micrograms of fine particle pollution per cubic meter of air, down from 12 micrograms set a decade ago under the Obama administration. The standard for particle pollution, more commonly known as soot, was left unchanged by former President Donald Trump, who overrode a scientific recommendation for a lower standard in his final days in office.  Environmental and public health groups that have been pushing for a stronger standard were disappointed, saying the EPA proposal does not go far enough to limit emissions of what is broadly called “fine particulate matter,” the tiny bits of soot we breathe in unseen from tailpipes, wildfires, factory and power plant smokestacks, and other sources.  In a development that could lead to an even lower standard, the EPA said Friday that it also would take comments on a range of ideas submitted by a scientific advisory committee, including a proposal that would lower the maximum standard for soot to 8 micrograms. A microgram is one-millionth of a gram.  EPA Administrator Michael Regan said the proposal to strengthen the national ambient air quality standards for fine particle pollution would help prevent serious health problems, including asthma attacks, heart attacks and premature death that disproportionately affect vulnerable populations. Those populations include …

India has announced a $2.3 billion plan to promote “green hydrogen” — hydrogen produced with renewable energy — which experts say could be the clean fuel of the future. The initiative could help the world’s third-largest emitter of greenhouse gases reach its goal of net zero carbon emissions by 2070.  A series of incentives are aimed at making green hydrogen affordable by bringing down production costs of a technology that has yet to become commercially viable.   While India has been rapidly expanding renewables such as solar energy, these will not be enough to meet climate goals in a country whose energy needs are expected to grow more than anywhere in the world over the next two decades. India’s current reliance on carbon-emitting coal, its primary source of electricity, has raised concerns on how it will switch to clean energy. The government is hoping that investments under what is called the National Hydrogen Mission, will provide the answer. “For lot of heavy industries like steel, cement and oil refining, green hydrogen can be a better solution to make them cleaner. Their massive energy requirements cannot be met by other renewable sources such as solar and wind,” Vibhuti Garg, South Asia director at the Institute for Energy Economics and Financial Analysis, said.  “But much will depend on the cost economics” he said.  Green hydrogen is made by using electricity from renewable sources to split hydrogen from water. The energy it produces creates no carbon emissions. But in an industry still in its …

The world’s glaciers are shrinking and disappearing faster than scientists thought, with two-thirds of them projected to melt out of existence by the end of the century at current climate change trends, according to a new study. But if the world can limit future warming to just a few more tenths of a degree and fulfill international goals — technically possible but unlikely according to many scientists — then slightly less than half the globe’s glaciers will disappear, said the same study. Mostly small but well-known glaciers are marching to extinction, study authors said. In an also unlikely worst-case scenario of several degrees of warming, 83% of the world’s glaciers would likely disappear by the year 2100, study authors said. Thursday’s study in the journal Science examined all of the globe’s 215,000 land-based glaciers — not counting those on ice sheets in Greenland and Antarctica — in a more comprehensive way than past studies. Scientists then used computer simulations to calculate, using different levels of warming, how many glaciers would disappear, how many trillions of tons of ice would melt, and how much it would contribute to sea level rise. The world is now on track for a 2.7-degree Celsius (4.9 degrees Fahrenheit) temperature rise since pre-industrial times, which by the year 2100 means losing 32% of the world’s glacier mass, or 48.5 trillion metric tons of ice as well as 68% of the glaciers disappearing. That would increase sea level rise by 115 millimeters (4.5 inches) in addition to …

The Food and Drug Administration on Tuesday finalized a rule change that allows women seeking abortion pills to get them through the mail, replacing a long-standing requirement that they pick up the medicine in person.  The Biden administration implemented the change last year, announcing it would no longer enforce the dispensing rule. Tuesday’s action formally updates the drug’s labeling to allow women to get a prescription via telehealth consultation with a health professional, and then receive the pills through the mail, where permitted by law.  Still, the rule change’s impact has been blunted by numerous state laws limiting abortion broadly and the pills specifically. Legal experts foresee years of court battles over access to the pills, as abortion-rights proponents bring test cases to challenge state restrictions.  For more than 20 years, the FDA labeling had limited dispensing to doctor’s offices and clinics, due to safety concerns. During the COVID-19 pandemic, the FDA temporarily suspended the in-person requirement. The agency later said a new scientific review by agency staff supported easing access, concurring with numerous medical societies that had long said the restriction wasn’t necessary.  Two drugmakers that make brand-name and generic versions of abortion pills requested the latest FDA label update. Agency rules require a company to file an application before modifying dispensing restrictions on drugs.  Danco Laboratories, which sells branded Mifeprex (mifepristone), said in a statement the change “is critically important to expanding access to medication abortion services and will provide healthcare providers” another option for prescribing the drug.  …

Walter Cunningham, the last surviving astronaut from the first successful crewed space mission in NASA’s Apollo program, died Tuesday in Houston. He was 90. NASA confirmed Cunningham’s death in a statement but did not include its cause. Spokespersons for the agency and Cunningham’s wife, Dot Cunningham, did not immediately respond to questions. Cunningham was one of three astronauts aboard the 1968 Apollo 7 mission, an 11-day spaceflight that beamed live television broadcasts as they orbited Earth, paving the way for the moon landing less than a year later. Cunningham, then a civilian, crewed the mission with Navy Capt. Walter M. Schirra and Donn F. Eisele, an Air Force major. Cunningham was the lunar module pilot on the space flight, which launched from Cape Kennedy Air Force Station, Florida, on October 11 and splashed down in the Atlantic Ocean south of Bermuda. NASA said Cunningham, Eisele and Schirra flew a near perfect mission. Their spacecraft performed so well that the agency sent the next crew, Apollo 8, to orbit the moon as a prelude to the Apollo 11 moon landing in July 1969. The Apollo 7 astronauts also won a special Emmy award for their daily television reports from orbit, during which they clowned around, held up humorous signs and educated earthlings about space flight. It was NASA’s first crewed space mission since the deaths of the three Apollo 1 astronauts in a launch pad fire January 27, 1967. Cunningham recalled Apollo 7 during a 2017 event at the Kennedy Space …

A top health official in China has said that the fatalities from the latest surge in COVID-19 cases are “increasing” but within the normal range for mortality. In an interview with state broadcaster China Central Television (CCTV), Jiao Yahui, a National Health Commission official, said, “We have a huge base, so what people feel is that the severe cases, the critical cases or the fatalities are increasing. “Relative to the rest of the world, the infection peaks we are faced with across the country are not unusual,” she added.  The contrast between statements by Chinese officials assessing the COVID situation and social media footage of crowded hospital hallways and long lines at clinics prompted leading scientists advising the World Health Organization to call Tuesday for a “more realistic picture” about what China is experiencing after the pivot from “zero-COVID.” Normal mortality is the number of deaths authorities expect for a specific period based on long-term population data. Excess mortality reveals the difference between the number of deaths caused during the current wave of COVID and the number of fatalities expected had the pandemic not occurred. The excess mortality number has been used worldwide during the pandemic to provide a better sense of how many people have died of COVID. Tong Zhaohui, vice president of Chaoyang Hospital in Beijing, agreed that while the actual number of deaths is growing, the fatalities remain a small percentage of China’s population. “Think how many people around you have been infected but how many have …