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Your showerhead and toothbrush are teeming with viruses [Video]

The warm, damp environments of your showerhead and toothbrush are the perfect breeding ground for microbes, and a new study has identified hundreds of viruses that live there, showing the vast biodiversity to be found in the average home. Related video above: Should you get rid of your toothbrush after being sick?These viruses, however, are not the kind that will give you the common cold or flu (or worse). Called bacteriophages, or phages for short, they are the natural enemy of bacteria. Each tiny, tripod-looking phage has evolved to hunt, attack and gobble up a specific bacterial species.”The number of viruses that we found is absolutely wild,” Erica Hartmann, an associate professor at Northwestern University’s McCormick School of Engineering who led the study, said in a statement. “We found many viruses that we know very little about and many others that we have never seen before. It’s amazing how much-untapped biodiversity is all around us.”Researchers from the university studied samples of biofilms the glue-like communities of microorganisms attached to a surface from 34 toothbrushes and 92 showerheads to reach their conclusions, which were published Wednesday in the journal Frontiers in Microbiomes.They had already collected the samples from a previous study that investigated the types of bacteria inhabiting these items we use every day.”One of things that we’ve started to be able to do is, from those same types of samples, look at not just which bacteria are there, but actually which bacteriophages,” Hartmann told CNN.Bacteriophages are already being used in clinical trials as a potential solution to the growing problem of antibiotic resistance. By infecting and replicating inside a host bacterium, phages could kill pathogens and form the basis of new drugs to treat antibiotic-resistant or superbugs.”There’s also interest in designing maybe more sophisticated drugs, so that instead of taking a broad-spectrum antibiotic and wiping out your entire microbiome, you would be able to take this drug that would only affect the pathogen and leave the rest of your microbiome intact,” Hartmann said.In the United States alone, more than 2.8 million antimicrobial-resistant infections occur each year, while the World Health Organization labels the problem as one of the biggest global public health threats since it could make standard medical treatments like surgery, cesarean sections and chemotherapy much riskier.By sequencing the bacteria’s DNA, and then examining their corresponding phages using some “fairly complicated computer analyses,” the researchers “have been able to tell us a massive amount about what’s actually in there,” said Joe Parker, a senior research fellow at the UK’s National Biofilms Innovation Centre, who wasn’t involved in the study.In total, researchers say they identified 614 different viruses on the samples, though Hartmann added that there were probably many more present, since almost every sample contained a unique constellation of microbes.Parker notes that researchers probably identified a “minimum of 22 different bacterial viruses (phages) across these samples and depending on where you draw the line in terms of believing the data analysis, which is a computer model, there could be upwards of 600 different types of phages.”On the showerheads, many of the microbes originated from water sources, while those on toothbrushes came from a mixture of the human mouth and the surrounding environment. “There’s just an enormous amount of microbial diversity. And for every bacterium, there’s potentially tens or hundreds or even thousands of viruses that infect it,” Hartmann said, noting that viruses mutate very quickly, too.She hypothesized that a bacterium in your mouth could transfer to your toothbrush, taking its viruses with it and these could keep evolving on the toothbrush.”And so, it’s possible that there are viruses that are basically endemic to your toothbrush and are found nowhere else on earth,” she said. “We don’t know that, that’s just one hypothesis that might explain the enormous amount of variety.”While the idea that our homes are harboring so many tiny creatures may seem unsettling, Hartmann believes we should learn to appreciate our little guests.”Microbes are everywhere all the time We wouldn’t be able to digest our food or fend off infection if we didn’t have our microbes,” Hartmann said. “As much as we might initially react with a little ick factor, I think it’s really important to approach the microbial world with a sense of wonder and curiosity that these are actually things that do an enormous amount of good and potentially harbor an enormous potential for biotechnology.”

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Control the path and power of hurricanes? Forget it, scientists say [Video]

Hurricanes are humanitys reminder of the uncontrollable, chaotic power of Earths weather.Miltons powerful push toward Florida just days after Helene devastated large parts of the Southeast likely has some in the region wondering if they are being targeted. In some corners of the Internet, Helene has already sparked conspiracy theories and disinformation suggesting the government somehow aimed the hurricane at Republican voters.Besides discounting common sense, such theories disregard weather history that shows the hurricanes are hitting many of the same areas they have for centuries. They also presume an ability for humans to quickly reshape the weather far beyond relatively puny efforts such as cloud seeding.Related video above: Hurricane Milton prompts evacuations along Florida’s Gulf CoastIf meteorologists could stop hurricanes, we would stop hurricanes, Kristen Corbosiero, a professor of atmospheric and environmental sciences at the University at Albany. If we could control the weather, we would not want the kind of death and destruction thats happened.Heres a look at what humans can and cant do when it comes to weather:The power of hurricanes, heightened by climate changeA fully developed hurricane releases heat energy that is the equivalent of a 10-megaton nuclear bomb every 20 minutes more than all the energy used at a given time by humanity, according to National Hurricane Center tropical analysis chief Chris Landsea.And scientists are now finding many ways climate change is making hurricanes worse, with warmer oceans that add energy and more water in the warming atmosphere to fall as rain, said Chris Field, director of the Stanford Woods Institute for the Environment.The amount of energy a hurricane generates is insane, said Colorado State University hurricane researcher Phil Klotzbach. Its the height of human arrogance to think people have the power to change them, he said.But that hasn’t stopped people from trying, or at least thinking about trying.Historical efforts to control hurricanes have failedJim Fleming of Colby College has studied historical efforts to control the weather and thinks humans have nowhere near the practical technology to get there. He described an attempt in 1947 in which General Electric partnered with the U.S. military to drop dry ice from Air Force jets into the path of a hurricane in an attempt to weaken it. It didn’t work.The typical science goes like understanding, prediction and then possibly control, Fleming said, noting that the atmosphere is far more powerful and complex than most proposals to control it. It goes back into Greek mythology to think you can control the powers of the heavens, but also it’s a failed idea.In the 1960s, 1970s and 1980s, the federal government briefly tried Project STORMFURY. The idea was to seed a hurricane to replace its eyewall with a larger one that would make the storm bigger in size but weaker in intensity. Tests were inconclusive and researchers realized if they made the storm larger, people who wouldnt have been hurt by the storm would now be in danger, which is an ethical and liability problem, the project director once said.Video below: Flooding is one of the biggest threats faced during hurricane seasonFor decades, the National Hurricane Center and its parent agency, the National Oceanic and Atmospheric Administration, have been asked about nuclear-bombing a hurricane. But the bombs aren’t powerful enough, and it would add the problem of radioactive fallout, Corbosiero said.Bringing cooling icebergs or seeding or adding water-absorbing substances also are ideas that just dont work, NOAA scientists said.Climate change begets engineering and lots of questionsFailed historical attempts to control hurricanes differ somewhat from some scientists’ futuristic ideas to combat climate change and extreme weather. That’s because instead of targeting individual weather events, modern geoengineers would operate on a larger scale thinking about how to reverse the broad-scale damage humans have already done to the global climate by emitting greenhouse gases.Scientists in the field say one of the most promising ideas they see based on computer models is solar geoengineering. The method would involve lofting aerosol particles into the upper atmosphere to bounce a tiny bit of sunlight back into space, cooling the planet slightly.Supporters acknowledge the risks and challenges. But it also “might have quite large benefits, especially for the worlds poorest,” said David Keith, a professor at the University of Chicago and founding faculty director of the Climate Systems Engineering initiative.Two years ago, the largest society of scientists who work on climate issues, the American Geophysical Union, announced it was forming an ethics framework for climate intervention.”Some scientists warn that tinkering with Earths atmosphere to fix climate change is likely to create cascading new problems. Pennsylvania State University climate scientist Michael Mann expressed worries on the ethics framework that just talking about guidelines will make the tinkering more likely to occur in the real world, something that could have harmful side effects.Field, of Stanford, agreed that the modeling strongly encourages that geoengineering could be effective, including at mitigating the worst threats of hurricanes, even if that’s decades away. But he emphasized that it’s just one piece of the best solution, which is to stop climate change by cutting greenhouse gas emissions.Whatever else we do, that needs to be the core set of activities, he said.