Scientists Find Bacteria That Eats Plastic
The scientists discovered the strain of bacteria, known as pseudomonas bacteria, at a dump site loaded with plastic waste, where they noticed that it was attacking polyurethane. Polyurethane's are ubiquitous in plastic products because they are pliable and durable. However, when they reach the end of their usefulness and end up in landfills, they decompose slowly and slowly release toxic chemicals into the soil as they degrade. They are also notoriously difficult to recycle, according to Courthouse News.
Since it is so difficult to recycle, millions and millions of products containing polyurethane like sneakers, diapers, kitchen sponges and foam installation end up in landfills. Polyurethane usually kills most bacteria too, so it surprised the researchers to find a strain that not only survived, but also used polyurethane to thrive, according to The Guardian. The findings were published in the journal Frontiers in Microbiology.
"The bacteria can use these compounds as a sole source of carbon, nitrogen and energy," Hermann J. Heipieper, a senior scientist at the Helmholtz Centre for Environmental Research-UFZ in Leipzig, Germany and co-author of the new paper, said in a statement. "These findings represent an important step in being able to reuse hard-to-recycle polyurethane products."
Pseudomonas bacteria are part of a family of microorganisms known for its ability to withstand harsh conditions, such as high temperatures and acidic environments.
While the little germs offer hope for a solution to the plastic crisis polluting land and water around the globe, scientists are still a long way away from being able to use the bacteria on a large scale. Heipieper estimated that it could be 10 years before the bacteria are ready to consume plastic at a large scale. He added that in the meantime, it is important to reduce the use of non-recyclable plastic and to cut the amount of plastic used around the world, according to The Guardian.
Our reliance on plastic has created a waste crisis. In 2015, polyurethane products alone accounted for 3.5 million tons of the plastics produced in Europe, according to a press release from the journal that published the study. More than 8 billion metric tons of plastic has been produced since the 1950s, according to The Guardian, and a vast majority of it has polluted the world's land and oceans, or ends up in landfills. Scientists say it threatens a "near permanent contamination of the natural environment."
As for polyurethane, its heat resistance make it a difficult and energy intensive to melt down. Because of that, it is disproportionately tossed into landfills around the world where its slow degradation releases toxic — and often carcinogenic — chemicals, according to Courthouse News.
In the laboratory, the researchers fed key components of polyurethane to the bugs. "We found the bacteria can use these compounds as a sole source of carbon, nitrogen and energy," Heipieper said, as The Guardian reported.
"When you have huge amounts of plastic in the environment, that means there is a lot of carbon and there will be evolution to use this as food," Heipieper said as The Guardian reported.
"Bacteria are there in huge numbers and their evolution is very fast. However, this certainly doesn't mean that the work of microbiologists can lead to a complete solution," he added. "The main message should be to avoid plastic being released into the environment in the first place."
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By Derrick Z. Jackson
Officials at the highest levels are discussing the possibility of caving in on controlling the coronavirus and instead letting it run rampant throughout the United States until we reach "herd immunity," the point where the virus effectively runs out of people to infect. More than 6,200 scientists, health professionals, and research organizations say this is inhumane and have signed a memorandum rejecting herd immunity as a legitimate strategy.
Herd Immunity’s Unacceptable Toll<p>Resumption of normal life in the United States under a herd immunity approach would result in an enormous death toll by all estimates. Former CDC director Tom Frieden <a href="https://www.washingtonpost.com/opinions/tom-frieden-herd-immunity-wrong-solution-coronavirus/2020/10/16/acb4ae8a-0fe6-11eb-8074-0e943a91bf08_story.html" target="_blank">estimates</a> that another 500,000 people would have to die to achieve 60 percent herd immunity. "And that's the best-case scenario," Frieden wrote in a <em>Washington Post</em> op-ed. "The number of deaths to get there could be twice as high."</p><p>Frieden said that is the best-case scenario because no one really knows if the <a href="https://www.mayoclinic.org/diseases-conditions/coronavirus/in-depth/herd-immunity-and-coronavirus/art-20486808" target="_blank">actual percentage needed</a> to see the virus peter out is to have it <a href="https://thehill.com/opinion/healthcare/521834-covid-19-vaccine-barriers-efficacy-availability-and-acceptability" target="_blank" rel="noopener noreferrer">infect</a> more like <a href="https://www.washingtonpost.com/health/2020/08/31/herd-immunity-covid-19/" target="_blank" rel="noopener noreferrer">65, 70,</a> or even <a href="https://www.vox.com/21451282/herd-immunity-explained-covid-19-pandemic" target="_blank" rel="noopener noreferrer">75 percent</a> of the population. Even if immunity could be miraculously achieved at 50 percent, an estimate <a href="https://www.nature.com/articles/s41577-020-00451-5" target="_blank" rel="noopener noreferrer">published</a> in <em>Nature Reviews Immunology</em> places the range of sacrifice somewhere between 500,000 and 2.1 million deaths.</p><p>That makes it little wonder that Anthony Fauci, the most respected scientist advising the Trump administration on the pandemic, called herd immunity for the coronavirus "total nonsense." Fauci is backed up by the likes of National Institutes of Health Director Francis Collins, who said herd immunity is a "dangerous" and "fringe" component of epidemiology. Ashish Jha, dean of the Brown University School of Health <a href="https://www.bostonglobe.com/2020/10/20/nation/scores-mass-scientists-doctors-sign-open-letter-against-herd-immunity-proposal/?outputType=amp" target="_blank" rel="noopener noreferrer">called</a> herd immunity "junk science."</p><p>The head of the World Health Organization (WHO), Tedros Adhanom Ghebreyesus, <a href="https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19---12-october-2020" target="_blank" rel="noopener noreferrer">said this month</a> that the only acceptable form of "herd immunity" is achieved through vaccination. "Herd immunity is achieved by protecting people from a virus, not by exposing them to it," the secretary general said. "Never in the history of public health has herd immunity been used as a strategy for responding to an outbreak, let alone a pandemic... Allowing a dangerous virus that we don't fully understand to run free is simply unethical. It's not an option."</p>
Herd Immunity Is the National De Facto Strategy<p>Somehow, none of that has culled herd immunity from being considered as a legitimate approach for fighting COVID-19. Rather, the Great Barrington Declaration has much in common with the Trump administration's approach to the coronavirus, which has led to more people dying from COVID-19 in the United States than in any other nation on Earth.</p><p>A de facto herd immunity approach is the only thing that can explain the push by governors of so many states to <a href="https://blog.ucsusa.org/derrick-jackson/the-push-to-relax-covid-19-protections-exposes-age-old-racial-wounds" target="_blank">reopen</a> bars, restaurants, beaches, bowling alleys, and gyms in states even as the virus has raged and case numbers have been increasing. It is the only thing that can explain the federal designation of meatpackers as essential workers and state demands that teachers go back into classrooms despite outbreaks and deaths related to those professions.</p><p>It also explains how so many of the nation's most respected scientific voices have been silenced. Despite the virus's current "uncontrolled spread" in 34 states and Puerto Rico, according to October 21 <a href="https://www.covidexitstrategy.org/" target="_blank" rel="noopener noreferrer">tracking</a> by CovidExistStrategy.org, the White House has pushed aside Fauci, Coronavirus Task Force Coordinator Deborah Birx, Surgeon General Jerome Adams, and Robert Redfield, the head of the Centers for Disease Prevention and Control.</p><p>In their place, the administration has handed the pandemic podium to <a href="https://www.washingtonpost.com/politics/trumps-den-of-dissent-inside-the-white-house-task-force-as-coronavirus-surges/2020/10/19/7ff8ee6a-0a6e-11eb-859b-f9c27abe638d_story.html?utm_campaign=wp_to_your_health&utm_medium=email&utm_source=newsletter&wpisrc=nl_tyh&wpmk=1&pwapi_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJjb29raWVuYW1lIjoid3BfY3J0aWQiLCJpc3MiOiJDYXJ0YSIsImNvb2tpZXZhbHVlIjoiNWE1ZDQ3N2M5YmJjMGYyNmNiMTViMmI0IiwidGFnIjoiNWY4ZGZhZmQ5ZDJmZGEwZWZiNGViMzQyIiwidXJsIjoiaHR0cHM6Ly93d3cud2FzaGluZ3RvbnBvc3QuY29tL3BvbGl0aWNzL3RydW1wcy1kZW4tb2YtZGlzc2VudC1pbnNpZGUtdGhlLXdoaXRlLWhvdXNlLXRhc2stZm9yY2UtYXMtY29yb25hdmlydXMtc3VyZ2VzLzIwMjAvMTAvMTkvN2ZmOGVlNmEtMGE2ZS0xMWViLTg1OWItZjljMjdhYmU2MzhkX3N0b3J5Lmh0bWw_dXRtX2NhbXBhaWduPXdwX3RvX3lvdXJfaGVhbHRoJnV0bV9tZWRpdW09ZW1haWwmdXRtX3NvdXJjZT1uZXdzbGV0dGVyJndwaXNyYz1ubF90eWgmd3Btaz0xIn0.MyoXrwQD-PwWqdbb70_JfrI_fxHO0be_O_tpTTMXBgE" target="_blank" rel="noopener noreferrer">Scott Atlas</a>, a radiologist and conservative pundit with <a href="https://blog.ucsusa.org/derrick-jackson/public-wants-science-based-policies-for-covid-19" target="_blank" rel="noopener noreferrer">no background</a> in infectious disease science or epidemiology in measuring disease prevalence. Inhumanely ignoring the more than half of U.S. adults having a pre-existing condition that could compromise them for COVID-19, he blithely praises herd immunity, <a href="https://blog.ucsusa.org/derrick-jackson/public-wants-science-based-policies-for-covid-19" target="_blank" rel="noopener noreferrer">saying,</a> "We can allow a lot of people to get infected. Those who are not at risk to die or have a serious hospital-requiring illness, we should be fine with letting them get infected."</p><p>He <a href="https://thehill.com/homenews/administration/521688-birx-confronted-pence-about-atlas" target="_blank" rel="noopener noreferrer">pooh-poohs</a> expanded testing, saying, "you are destroying the workforce." Twitter recently took down one of Atlas's tweets for falsely claiming, "Masks work? NO" and then lying that the WHO says widespread mask use is "not supported." The first sentence of the WHO's <a href="https://www.who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-public/when-and-how-to-use-masks" target="_blank" rel="noopener noreferrer">webpage</a> on masks says, "Masks are a key measure to suppress the spread of COVID-19 and save lives."</p><p>Atlas denies that the White House has a "wide-open strategy of achieving herd immunity." But there's little doubt that the White House is wide open to the idea. Last week, Atlas <a href="https://www.foxnews.com/transcript/trump-adviser-calls-nbc-town-hall-brazen-display-of-media-duplicity" target="_blank" rel="noopener noreferrer">appeared</a> on Fox News <a href="https://www.wsj.com/articles/white-house-touts-document-calling-for-herd-immunity-approach-to-covid-19-crisis-11603051550" target="_blank" rel="noopener noreferrer">to say</a> the thrust of the Great Barrington Declaration "is exactly aligned with the president." That was seconded by a senior administration official who <a href="https://www.washingtonpost.com/health/covid-herd-immunity/2020/10/10/3910251c-0a60-11eb-859b-f9c27abe638d_story.html" target="_blank" rel="noopener noreferrer">told reporters</a> in a conference call that the Great Barrington Declaration "is endorsing what the president's policy has been for months."</p><p>The freezing out of scientists on the Coronavirus Task Force reached deep space levels this week (a metaphoric minus 455 degrees Fahrenheit), with multiple buckets of ice dumped on Fauci. Atlas diminished Fauci as "just one person" on the force, offering only a "limited approach." President Trump called Fauci a "disaster," <a href="https://www.washingtonpost.com/politics/trump-fauci-campaign-biden/2020/10/19/30b2fe58-1226-11eb-82af-864652063d61_story.html" target="_blank" rel="noopener noreferrer">claiming,</a> "People are tired of hearing Fauci and these idiots, all these idiots who got it wrong."</p>
Many Thousands of Lives Can Still Be Saved<p>Atlas's malpractice already merits his dismissal. He should be forced to step down because his disregard for science will surely lead to incalculable disaster if a herd immunity approach becomes official government policy. Calls for his ouster have already begun even from inside the task force. <a href="https://www.washingtonpost.com/politics/trumps-den-of-dissent-inside-the-white-house-task-force-as-coronavirus-surges/2020/10/19/7ff8ee6a-0a6e-11eb-859b-f9c27abe638d_story.html" target="_blank">According</a> to the <em>Washington Post</em>, Birx went to Vice President Mike Pence to suggest removing Atlas. All Pence reportedly did was ask Birx and Atlas to work out their problems on their own.</p><p>There is no time left for such discord within the task force and for discordant messages to come from the White House on how people should protect themselves from COVID-19. The thousands of scientists and public health professionals who signed the John Snow Memorandum say "it is critical to act decisively and urgently," to launch a "robust" response on the level of New Zealand, Vietnam, or Japan—all of which have shown success in containing the virus and keeping the numbers of cases and deaths relatively low.</p><p>The approach that has been proven effective starts with face coverings and social distancing and reducing the temptation we all will feel during the oncoming winter holidays to have extended family gatherings. Researchers from MIT and the Vancouver School of Economics <a href="https://www.medrxiv.org/content/10.1101/2020.05.27.20115139v6.full.pdf" target="_blank">estimate</a> in a working paper that, if the United States had established a national mask mandate in mid-March, between 19,000 and 47,000 lives could have been saved by the end of May. Now that the nation's death toll approaches a quarter million lives lost, and is <a href="https://covid19.healthdata.org/united-states-of-america?view=total-deaths&tab=trend" target="_blank" rel="noopener noreferrer">projected</a> to reach nearly 400,000 by February 1, according to the Institutes for Health Metrics and Evaluation at the University of Washington, the institute estimates we could avoid 74,000 new deaths with universal mask use.</p><p>Importantly, masks protect others, including the most vulnerable among us. This week, the <em>Washington Post</em> reported how coronavirus outbreaks among college students partying in unmasked packs in LaCrosse, Wisconsin was found to have <a href="https://www.washingtonpost.com/health/2020/10/21/la-crosse-wisconsin-covid-outbreak-nursing-home-deaths/?utm_campaign=wp_to_your_health&utm_medium=email&utm_source=newsletter&wpisrc=nl_tyh&wpmk=1&pwapi_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJjb29raWVuYW1lIjoid3BfY3J0aWQiLCJpc3MiOiJDYXJ0YSIsImNvb2tpZXZhbHVlIjoiNWE1ZDQ3N2M5YmJjMGYyNmNiMTViMmI0IiwidGFnIjoiNWY5MWU3YjU5ZDJmZGEwZWZiNTE3OGNmIiwidXJsIjoiaHR0cHM6Ly93d3cud2FzaGluZ3RvbnBvc3QuY29tL2hlYWx0aC8yMDIwLzEwLzIxL2xhLWNyb3NzZS13aXNjb25zaW4tY292aWQtb3V0YnJlYWstbnVyc2luZy1ob21lLWRlYXRocy8_dXRtX2NhbXBhaWduPXdwX3RvX3lvdXJfaGVhbHRoJnV0bV9tZWRpdW09ZW1haWwmdXRtX3NvdXJjZT1uZXdzbGV0dGVyJndwaXNyYz1ubF90eWgmd3Btaz0xIn0.6Ep-AvkJkNqGTE08UsekVlNWR01vYzQe-qg5BPruSQM" target="_blank" rel="noopener noreferrer">led to 19 deaths so far of people over the age of 60</a>. Before that, the city had gone without a single pandemic death in its nursing homes.</p><p>That is on the heels of the wedding in Millinocket, Maine that resulted in an outbreak that <a href="https://bangordailynews.com/2020/09/19/news/eight-deaths-now-tied-to-millinocket-area-wedding-outbreak-including-seven-at-nursing-home/" target="_blank" rel="noopener noreferrer">killed eight elderly people</a>, none of whom attended the event, and the 500,000-person Sturgis, South Dakota motorcycle rally that is <a href="https://www.washingtonpost.com/health/2020/10/17/sturgis-rally-spread/" target="_blank" rel="noopener noreferrer">now tied</a> to the massive coronavirus outbreak in the Upper Midwest and Mountain States. The Germain IZA Institute of Labor Economics estimates that the illness generated from the rally <a href="https://www.iza.org/publications/dp/13670/the-contagion-externality-of-a-superspreading-event-the-sturgis-motorcycle-rally-and-covid-19" target="_blank" rel="noopener noreferrer">will cost</a> the nation $12.2 billion in health care costs.</p><p>Atlas and the proponents of the Great Barrington Declaration have not yet said why this is just fine. That is why they must be unmasked for the charlatans that they are.</p>
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By Kayla Wiles
What if paint could cool off a building enough to not need air conditioning?
<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="835862ffe8b025c2f0ae633c999ecb08"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/caFzYvYAUo4?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>The paint would not only send heat away from a surface, but also away from Earth into deep space where heat travels indefinitely at the speed of light. This way, heat doesn't get trapped within the atmosphere and contribute to global warming. A video about this project is available on <a href="https://www.youtube.com/watch?v=caFzYvYAUo4&feature=youtu.be" target="_blank">YouTube</a>.</p><p>"We're not moving heat from the surface to the atmosphere. We're just dumping it all out into the universe, which is an infinite heat sink," said Xiangyu Li, a postdoctoral researcher at the Massachusetts Institute of Technology who worked on this project as a Ph.D. student in Ruan's lab.</p><p>Earth's surface would actually get cooler with this technology if the paint were applied to a variety of surfaces including roads, rooftops and cars all over the world, the researchers said.</p>
An infrared camera image shows that white radiative cooling paint developed by Purdue University researchers (left, purple) can stay cooler in direct sunlight compared with commercial white paint. Purdue University image / Joseph Peoples<p>In a paper published Wednesday (Oct. 21) in the journal <a href="https://doi.org/10.1016/j.xcrp.2020.100221" target="_blank">Cell Reports Physical Science</a>, the researchers show that compared with commercial white paint, the paint that they developed can maintain a lower temperature under direct sunlight and reflect more ultraviolet rays.</p><p>Their proof is infrared camera images taken of the two paints in rooftop experiments.</p><p>"An infrared camera gives you a temperature reading just like a thermometer would to judge if someone has a fever. These readings confirmed that our paint has a lower temperature than both its surroundings and the commercial counterpart," Ruan said.</p><p>Commercial "heat rejecting paints" currently on the market reflect only 80%-90% of sunlight and cannot achieve temperatures below their surroundings. The white paint that Purdue researchers created reflects 95.5% sunlight and efficiently radiates infrared heat. </p>
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