Can Supplements Help Fight COVID-19? Here’s What We Know
By Laura Beil
Consumers have long turned to vitamins and herbs to try to protect themselves from disease. This pandemic is no different — especially with headlines that scream "This supplement could save you from coronavirus."
It also helps to have celebrity enthusiasts. When President Donald Trump was diagnosed with COVID-19, his pill arsenal included Vitamin D and zinc. And in an Instagram chat with actress Jennifer Garner in September, infectious diseases expert Anthony Fauci touted vitamins C and D as ways that might generally boost the immune system. "If you're deficient in vitamin D," he noted, "that does have an impact on your susceptibility to infection. I would not mind recommending, and I do it myself, taking vitamin D supplements."
But whether over-the-counter supplements can actually prevent, or even treat, COVID-19, is not clear. Since the disease is so new, researchers haven't had much time for the kind of large experiments that provide the best answers. Instead, scientists have mostly relied on fresh takes on old data. Some studies have looked at outcomes of patients who routinely take certain supplements — and found some promising hints. But so far there's little data from the kinds of scientifically rigorous experiments that give doctors confidence when recommending supplements.
Here's what we know today about three supplements getting plenty of attention around COVID-19.
What it is: Called "the sunshine vitamin" because the body makes it naturally in the presence of ultraviolet light, Vitamin D is one of the most heavily studied supplements (SN: 1/27/19). Certain foods, including fish and fortified milk products, are also high in the vitamin.
Why it might help: Vitamin D is a hormone building block that helps strengthen the immune system.
How it works for other infections: In 2017, the British Medical Journal published a meta-analysis that suggested a daily vitamin D supplement might help prevent respiratory infections, particularly in people who are deficient in the vitamin.
But one key word here is deficient. That risk is highest during dark winters at high latitudes and among people with more color in their skin (melanin, a pigment that's higher in darker skin, inhibits the production of vitamin D).
"If you have enough vitamin D in your body, the evidence doesn't stack up to say that giving you more will make a real difference," says Susan Lanham-New, head of the Nutritional Sciences Department at the University of Surrey in England.
And taking too much can create new health problems, stressing certain internal organs and leading to a dangerously high calcium buildup in the blood. The recommended daily allowance for adults is 600 to 800 International Units per day, and the upper limit is considered to be 4,000 IUs per day.
What we know about Vitamin D and COVID-19: Few studies have looked directly at whether vitamin D makes a difference in COVID.
In May, in the BMJ Nutrition, Prevention & Health, Lanham-New and her colleagues published a summary of existing evidence and concluded that there's only enough to recommend vitamin D to help with COVID-19 prevention for people who are deficient. That paper made inferences from how vitamin D works against other respiratory tract infections and immune health.
More than a dozen studies are now testing vitamin D directly for prevention and treatment, including a large one led by JoAnn Manson, a leading expert on vitamin D. An epidemiologist and preventive medicine physician at Harvard Medical School and Brigham & Women's Hospital in Boston. That study will analyze if vitamin D can affect the course of a COVID-19 infection. The trial aims to recruit 2,700 people across the United States with newly diagnosed infections, along with their close household contacts.
The goal is to determine whether newly diagnosed people given high doses of vitamin D — 3,200 IU per day — are less likely than people who get a placebo to experience severe symptoms and need hospitalization. "The biological plausibility for a benefit in COVID is compelling," she says, given the nutrient's theoretical ability to impede the severe inflammatory reaction that can follow coronavirus infection. "However the evidence is not conclusive at this time."
What it is: Zinc, a mineral found in cells all over the body, is found naturally in certain meats, beans and oysters.
Why it might help: It plays several supportive roles in the immune system, which is why zinc lozenges are always hot sellers in cold and flu season. Zinc also helps with cell division and growth.
How it works for other infections: Studies of using zinc for colds — which are frequently caused by coronaviruses — suggest that using a supplement right after symptoms start might make them go away quicker. That said, a clinical trial from researchers in Finland and the United Kingdom, published in January in BMJ Open did not find any value for zinc lozenges for the treatment of colds. Some researchers have theorized that inconsistencies in data for colds may be explained by varying amounts of zinc released in different lozenges.
What we know about zinc and COVID-19: The mineral is promising enough that it was added to some early studies of hydroxychloroquine, a drug tested early in the pandemic. (Studies have since shown that hydroxychloroquine can't prevent or treat COVID-19 (SN: 8/2/20).)
In July, researchers from Aachen University in Germany wrote in Frontiers of Immunology that current evidence "strongly suggests great benefits of zinc supplementation" based on looking at similar infections including SARS, another disease caused by a coronavirus. For example, studies suggest that giving zinc reduces the risk for death from a pneumonia infection. The researchers cite evidence that zinc might help prevent the virus from entering the body, and help slow the virus's replication when it does.
Another review — also based on indirect evidence — published August 1 in Advances in Integrative Medicine also concluded that zinc might be helpful in people who are deficient.
In September, researchers from Hospital Del Marin Barcelona reported that among 249 patients studied, those who survived COVID had higher zinc levels in their plasma (an average of 63.1 mcg/dl) than those who died (43mcg/dl).
Overall, though, the jury is still out, says Suma Thomas, a cardiologist at the Cleveland Clinic Foundation, who in June led a team that reviewed the evidence for popular supplements in the Cleveland Clinic Journal of Medicine. Given what's already known, zinc could possibly decrease the duration of infection but not the severity of symptoms, she said, particularly among people who are deficient. About a dozen studies are now looking at zinc for COVID treatment, often with other drugs or supplements.
Thomas and her colleagues are comparing symptom severity and future hospitalization in COVID-19 patients who take zinc with and without high doses of vitamin C with those who receive ordinary care without the supplement. Results are expected soon, she says.
What it is: Also called L-ascorbic acid, vitamin C has a long list of roles in the body. It's found naturally in fruits and vegetables, especially citrus, peppers and tomatoes.
Why it might help: It's a potent antioxidant that's important for a healthy immune system and preventing inflammation.
How it works for other infections: Thomas cautions that the data on vitamin C are often contradictory. One review from Chinese researchers, published in February in the Journal of Medical Virology, looked at what is already known about vitamin C and other supplements that might have a role in COVID-19 treatment. Among other encouraging signs, human studies find a lower incidence of pneumonia among people taking vitamin C, "suggesting that vitamin C might prevent the susceptibility to lower respiratory tract infections under certain conditions."
But for preventing colds, a 2013 Cochrane review of 29 studies didn't support the idea that vitamin C supplements could help in the general population. However, the authors wrote, given that vitamin C is cheap and safe, "it may be worthwhile for common cold patients to test on an individual basis whether therapeutic vitamin C is beneficial."
What we know about Vitamin C and COVID-19: About a dozen studies are under way or planned to examine whether vitamin C added to coronavirus treatment helps with symptoms or survival, including Thomas' study at the Cleveland Clinic.
In a review published online in July in Nutrition, researchers from KU Leuven in Belgium concluded that the vitamin may help prevent infection and tamp down the dangerous inflammatory reaction that can cause severe symptoms, based on what is known about how the nutrient works in the body.
Melissa Badowski, a pharmacist who specializes in viral infections at the University of Illinois at Chicago College of Pharmacy and colleague Sarah Michienzi published an extensive look at all supplements that might be useful in the coronavirus epidemic. There's still not enough evidence to know whether they are helpful, the pair concluded in July in Drugs in Context. "It's not really clear if it's going to benefit patients," Badowski says.
And while supplements are generally safe, she adds that nothing is risk free. The best way to avoid infection, she says, is still to follow the advice of epidemiologists and public health experts: "Wash your hands, wear a mask, stay six feet apart."
This story was originally published by Science News, a nonprofit independent news organization.
- 7 Best Vitamins and Supplements to Combat Stress - EcoWatch ›
- The 10 Best Zinc Supplements of 2020 - EcoWatch ›
By Kang-Chun Cheng
Modoc County lies in the far northeast corner of California, and most of its 10,000 residents rely on cattle herding, logging, or government jobs for employment. Rodeos and 4-H programs fill most families' calendars; massive belt buckles, blue jeans, and cowboy hats are common attire. Modoc's niche brand of American individualism stems from a free-spirited cowboy culture that imbues the local ranching conflict with wild horses.
The History of Horse Management<p>Before the 1950s, feral horses were largely unregulated in the U.S. They were released, grazed, captured, killed, sold, and otherwise <a href="http://www.blm.gov/sites/blm.gov/files/WHB-Report-2020-NewCover-051920-508.pdf" target="_blank" rel="noopener noreferrer">managed by local inhabitants</a> as they saw fit. Around that time, Velma Bronn Johnston, aka "Wild Horse Annie," started raising public awareness of the "perceived inhumane capture and treatment of free-ranging herds."</p><p>Thanks in part to Johnston's efforts, the Wild Free-Roaming Horses and Burros Act was signed into law by President Nixon in 1971. It declared that the animals "shall be protected from capture, branding, harassment, or death; and to accomplish this, they are to be considered in the area where presently found, as an integral part of the natural system of the public lands."</p><p><a href="http://science.sciencemag.org/content/341/6148/847.full" target="_blank" rel="noopener noreferrer">This act</a> has been amended four times since its conception to accommodate the fluctuating opinions and conditions around maintaining a "thriving natural ecological balance on the public lands"—an admirable although highly subjective goal. Achieving it involves juggling competing interests: those of local residents, permanent grazers, hunters and fishers, advocacy groups, conservationists, and Indigenous tribes.</p><p>The Bureau of Land Management must manage these many conflicting interests. Modoc County's <a href="https://www.fs.fed.us/wild-horse-burro/territories/DevilsGardenPlateau.shtml" target="_blank">Devil's Garden Plateau Wild Horse Territory</a> epitomizes the challenges of this task. Officially deemed wild horse territory, the garden consists of 258,000 acres and is wholly within permitted livestock allotments. It is also home to wildlife such as cougar, antelope, migratory birds, and aquatic species dependent on delicate high-desert riparian areas.</p><p>The presence of wild horses has been shown to <a href="https://www.sciencedirect.com/science/article/pii/S014019631530094X" target="_blank">decrease native wildlife species diversity</a> for both birds and mammals. Pronghorn antelope are an icon in Western grasslands, known for their annual 350-mile migration along historic routes estimated to be 5,800 years old. This awe-inspiring trek is one of the longest large-mammal migration corridors remaining in North America, but 75% of <a href="http://conbio.onlinelibrary.wiley.com/doi/abs/10.1111/j.1523-1739.2004.00548.x" target="_blank" rel="noopener noreferrer">pronghorn migration routes</a> have already been lost because of disturbances from the accelerated leasing of public lands and energy development. Horses also affect the pronghorn's yearly migrations by <a href="http://www.sciencedirect.com/science/article/pii/S014019631630218X" target="_blank" rel="noopener noreferrer">monopolizing watering holes</a>, thus preventing native species from drinking.</p>
Indigenous Support for Ecological Balance<p>Ken Sandusky, a public information officer who has worked for the Forest Service in Modoc County for 13 years, lives by his station's mission statement: "Caring for the Land and Serving People." In his work, Sandusky aims to include the broad range of stakeholders and often acts as a tribal liaison. Sandusky himself is a member of the Choctaw tribe of Oklahoma, but as a Modoc native, is more culturally in touch with the local Klamath tribe.</p><p>When it comes to rangeland health, he says, there's a tangible split in what that actually means. "It depends on what you are measuring the outcome against," Sandusky explains. Range managers may perceive progress from a year-to-year basis, but to many Indigenous tribes, the baseline for "progress" goes back generations, to pre-contact times. "They have long memories," he says. "Tribes see damage that is a hundred-plus years in the making."</p>
A Willingness to Try New Things<p>"Americans don't know what's happening on these lands," says Suzanne Roy, the executive director of the American Wild Horse Campaign, an advocacy organization. The Bureau of Land Management, she says, "is run by and for the livestock industry. They come from a ranching background. The term 'rangeland' management itself illustrates how livestock management is the dominant perspective."</p><p>Roy is particularly concerned about how resources are being allocated: "Policies of land management agencies don't reflect the desires and interests of the public." To illustrate, most Americans associate public lands with national parks and environmental conservation; only 29% of respondents to a recent poll considered livestock grazing an acceptable use of those lands.</p><p>Grazing on public lands certainly aligns with the financial interests of cattle ranchers and helps explain why they insist on increased wild horse management. Cattle can <a href="http://fas.org/sgp/crs/misc/RS21232.pdf" target="_blank">graze on public lands</a> for $1.35 per animal per month, while grazing on comparable private land costs ranchers $23 per animal per month (American taxpayer dollars make up the difference). To be fair, though, small-scale ranching would not be viable without public lands.</p><p>The campaign hopes to work toward more equitable resource allocation and improvements to overall habitats for horses and wildlife generally. "There are workable solutions to this issue," Roy says. "Common pushback from rangers is that new conservation strategies will 'destroy our way of life,' but change doesn't have to be bad."</p><p>The <a href="https://www.sciencedirect.com/science/article/abs/pii/0362331994900264" target="_blank">social conservatism</a> intrinsic to human cultures makes change seem daunting and people reluctant to try new tactics even in the face of suboptimal systems. Roy uses a case in adjacent Marin County to illustrate: Until 2001, the county ran a USDA program focused on killing apex predators (e.g. coyotes, mountain lions, and cougars) in defense of livestock. Unfortunately, this strategy fails to take into account the science of predators. Killing one mountain lion, for example, creates a vacuum and will eventually lead to increased competition for this newly available territory. In 2001, Marin introduced a country-run program that promoted nonlethal methods such as fox lights, guard dogs, and fladry to deal with predator incidents while compensating ranchers for sheep and lambs lost to predation.</p><p>Ranchers were initially livid, concerned that bans on shooting and trapping hindered their rights, making them defenseless against livestock predation. But 15 years later, a majority agreed that this form of humane <a href="http://www.projectcoyote.org/wp-content/uploads/2016/10/Camilla-Fox-Thesis-FINAL-January-2008.pdf" target="_blank" rel="noopener noreferrer">adaptive management </a>has successfully reduced both livestock losses and the total number of predators. Ensuring its continued success, the program requires active participation on behalf of all stakeholders and long-term commitment from the local government for support.</p><p>As one fifth-generation sheepherder, Gowan Batiste, explained in an interview to the <a href="https://www.msn.com/en-us/news/us/mendocino-county-rancher-and-others-calling-for-non-lethal-wildlife-management/ar-BB16CJ8g" target="_blank" rel="noopener noreferrer">Ukiah Daily Journal,</a> "Livestock is a food of desperation for predators; the more you harass them and make life difficult for them, the more likely they are going to come into conflict with humans."</p>
Keeping Wild Horses in Check<p>When it comes to wild horses, many solutions are already in the works. Through annual autumn wild horse roundups, known as gathers, the Double Devil Wild Horse Corrals has become one of the U.S.'s most successful adoption sites. The California Cattlemen's Association, a nonprofit trade association and organization popular among ranchers in Modoc, urges its members to support the wild horse gathers in Devils Garden, saying they are humane, good for the horses themselves (since competition for scarce water and forage resources may instigate aggression and <a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1439-0310.1981.tb01930.x" target="_blank" rel="noopener noreferrer">herd violence</a>), and necessary to support local ranchers and Modoc's agriculture-reliant economy.</p><p>Another popular solution for controlling wild horse populations is a fertility-control vaccine called PZP, given to female horses on the range <a href="https://www.youtube.com/watch?v=Ur7w3UPTCsk" target="_blank" rel="noopener noreferrer">using dart guns</a>. Mares are tracked on foot or with game cameras while drones are used to locate more elusive herds. The PZP vaccine has been endorsed by the American Wild Horse Campaign as the "<a href="https://americanwildhorsecampaign.org/fertility-control" target="_blank" rel="noopener noreferrer">most promising strategy</a>" for managing wild horses in their habitats and is also recommended by the National Academy of Sciences. Importantly, a dose of the vaccine only costs $30.</p><p>Lastly, land acquisition and <a href="https://americanwildhorsecampaign.org/equitable-share-resources" target="_blank">grazing lease buyouts</a> can promote equitable sharing of public lands and available forage. Acquiring key pieces of land adjacent to or within federally designated wild horse habitat areas can reduce conflicts over resource allocation.</p>
A Global Search for Solutions<p>Pastoralists all over the world face similar land-use conflicts, despite huge variations in climate and culture. The ongoing situation across rural California resonates with that of Fulani cattle herders in Niger and Sami reindeer herders in the Arctic.</p><p>Herders everywhere are accused of having too many animals or are perceived as selfish and irresponsible by their own communities. Overgrazing is certainly an issue, but it's not simply the number of animals that matters: The <a href="https://savory.global/holistic-management/" target="_blank">amount of time</a> animals spend in a certain area is critical to rangeland health. And in the context of such allegations, the ecological value of grazing is frequently omitted. Grazers, both wild and domestic, <a href="https://www.yesmagazine.org/issue/food-everyone/2019/02/04/restoring-the-range-can-beef-be-earth-friendly/" target="_blank" rel="noopener noreferrer">are key to regulating soil health and allowing for species diversity and coverage, </a>as well as efficient carbon sequestration.</p><p>Part of the problem in these heated grazing debates is that moderate viewpoints are drowned out by extremist agendas—those who prioritize wild horse populations at all costs and those who want all of the horses gone, period. "The majority of people don't really have strong views about the horses," Sandusky says. "But the ones who do can get really into it." These unwavering views make it difficult to find compromises that account for all stakeholders.</p><p>"There is no biological problem, merely a social one," says professor Nicholas Tyler, a pastoralism expert at the University of Tromsø in northern Norway. Tyler maintains that in the case of horses and cattle in the West, as with so many others, the so-called equilibria argument is specious and quasi-biological. "Certainly a lot of horses will influence the species composition," he says. "Remove the horses, things change. Add horses, things change again. There is nothing magical about that."</p><p>But Tyler takes it one step further: "There never was, is, or will be a balance. There are shifting equilibria, which is something quite different," he says. "It is up to the community to decide which state of that equilibrium it prefers."</p>
- Horses Might Stop the Permafrost From Melting - EcoWatch ›
- Feds Begin Selling Wild Horses Captured in California for $1 Each ... ›
EcoWatch Daily Newsletter
By Anne-Sophie Brändlin
1. My Octopus Teacher (2020)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="43d618cfe4dea9f32fdb2880868a6f5f"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/3s0LTDhqe5A?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>No person has ever gotten as <a href="https://www.ecowatch.com/my-octopus-teacher-movie-2647785692.html">close and intimate with a wild octopus</a> as South African filmmaker Craig Foster, who decided to head out to an underwater kelp forest in the Atlantic Ocean every day for an entire year to capture the life of the mesmerizing creature. An unusual, touching friendship develops that will likely change the way you see your relationship to animals and the planet.</p>
2. David Attenborough: A Life On Our Planet (2020)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="bab38965d072e9023c9c36b1ccf622c9"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/64R2MYUt394?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p><a href="https://www.ecowatch.com/tag/David-Attenborough">David Attenborough</a> is the godfather of environmental docs. In his 94 years, the Briton has visited every corner of the world, documenting nature in all its variety and wonder. His latest film is a witness statement, in which he reflects upon the devastating changes he's seen in his lifetime. He also gives a vision of the future in which we work with nature, rather than against it.</p>
3. The Human Element (2019)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="f426ed5154f3133a6f8cb5d8d39cf211"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/k34FhplukXQ?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>This doc follows environmental photographer James Balog on his quest to portray Americans on the frontlines of climate change whose lives and livelihoods have been affected by the collision between people and nature. Balog captures how the four elements of earth, water, air and fire are being transformed by a fifth element — the human element — and what that means for our future.</p>
4. Before the Flood (2016)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="619d7c35d25e9cfc6e239bc1bd7d1ea2"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/D9xFFyUOpXo?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>In <a href="https://www.ecowatch.com/leonardo-dicaprio-before-the-flood-2057070140.html">this doc</a>, actor Leonardo DiCaprio teams up with National Geographic to travel the globe and witness the effects of global warming that are already visible, such as rising sea levels and deforestation. Featuring prominent figures such as Barack Obama, Ban Ki-moon, Pope Francis and Elon Musk, the doc offers solutions for a sustainable future and shows how we can challenge climate change deniers.</p>
5. Tomorrow (2015)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="8fdcf7de6bd422b6ab96134ce49366d9"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/NUN0QxRB7e0?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>Need an optimistic view on how to tackle the climate crisis? Then this upbeat French doc seeking out creative alternatives to our current form of agriculture, energy supply and waste management is for you. It introduces everyday sustainability innovators from across the world, such as urban gardeners and renewable energy enthusiasts, to inspire the rest of us to make local changes</p>
6. Racing Extinction (2015)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="6ec29ed8282004cb6ccc6e0eae7de1ae"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/MwxyrLUdcss?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>In this film by Oscar-winning director Louie Psihoyos, a team of activists expose the illegal trade of endangered species and document the global extinction crisis, which could result in the loss of half of all species. By using covert tactics and state-of-the-art technology, they take you to places where no one can go, uncover secrets and show you images you have never seen before.</p>
7. Virunga (2014)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="6922c47a9603f24dd431f6e5282f7cb5"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/wxXf2Vxj_EU?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>Virunga National Park in the Democratic Republic of Congo is one of the only places in the world where you can still find wild mountain gorillas. But the park and its inhabitants are under attack from poachers, armed militias and companies wanting to exploit natural resources. This gripping doc follows a group of people trying to preserve the park and protect these magnificent great apes.</p>
8. Cowspiracy: The Sustainability Secret (2014)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="9b7e7a93c26b3a3fc4f8a8374d98e2f2"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/nV04zyfLyN4?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>This crowdfunded documentary explores the impact of animal agriculture on the environment and investigates why the world's leading environmental organizations are too afraid to talk about it. The film has caused controversy by suggesting that animal agriculture is the primary source of environmental destruction and the main emitter of greenhouse gases, rather than fossil fuels.</p>
9. Years of Living Dangerously (2014)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="585f966df408ae57e3e31747a6c0a66b"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/juXzfwvVHZQ?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>In this Emmy-winning documentary series, celebrity correspondents travel the world to interview experts and scientists on the climate crisis and its effects. But rather than focusing on its star power, the two-season series also shines a spotlight on ordinary people affected by the climate crisis and shows how we can save our world for future generations.</p>
- 20 Instagram Accounts for Environmental Inspiration - EcoWatch ›
- Climate Champion David Attenborough Breaks Jennifer Anniston's ... ›
- 'My Octopus Teacher' Stuns Audiences, Reinforces Power of Nature ... ›
- 5 Must-Watch Documentaries for a More Sustainable Planet ... ›
By Victoria Masterson
Using one of the world's problems to solve another is the philosophy behind a Norwegian start-up's mission to develop affordable housing from 100% recycled plastic.
Sustainable Homes<p>UN-Habitat says an <a href="https://unhabitat.org/un-habitat-aims-to-use-plastic-waste-to-support-housing-for-all" target="_blank">estimated 60% of people living in urban areas of Africa are in informal settlements</a>. At the same time, between 1990 and 2017, African countries imported around 230 metric tonnes of plastic, "which mostly ended up in dump sites creating a massive environmental challenge," the agency adds.</p><p>UN-Habitat deputy executive director, Victor Kisob, said the aim of the partnership with Othalo was to "promote adequate, sustainable and affordable housing for all."</p>
Artist's impression of an Othalo community, imagined by architect Julien De Smedt. Othalo<p>Othalo's process involves shredding plastic waste and mixing it with other elements, including non-flammable materials. Components are used to build up to four floors, with a home of 60 square metres using eight tons of recycled plastic. A factory with one production line can produce 2,800 housing units annually.</p><p>Following successful laboratory tests, Othalo's factory in Estonia has started producing components to build three demonstration homes for Kenya's capital, Nairobi; Yaoundé, the capital of Cameroon and Dakar, the capital of Senegal.</p><p>Othalo founder Frank Cato Lahti has been developing and testing the technology since 2016 in partnership with <a href="https://www.sintef.no/en/" target="_blank">SINTEF</a>, a 70-year-old independent research organization in Trondheim, Norway, and experts at Norway's <a href="https://en.uit.no/startsida" target="_blank" rel="noopener noreferrer">University of Tromsø</a>.</p>
Othalo founder Frank Cato Lahti. Othalo<p>Almost <a href="https://www.un.org/development/desa/publications/2018-revision-of-world-urbanization-prospects.html" target="_blank">seven out of every 10 people in the world are expected to live in urban areas by 2050</a>. More than 90% of this growth will take place in Africa, Asia, Latin America, and the Caribbean.</p><p>"In the absence of effective urban planning, the consequences of this rapid urbanization will be dramatic," UN-Habitat warns.</p><p>Lack of proper housing and growth of slums, inadequate and outdated infrastructure, escalating poverty and unemployment, and pollution and health issues, are just some of the effects.</p><p>Mindsets, policies, and approaches towards urbanization need to change for the growth of cities and urban areas to be turned into opportunities that will leave nobody behind, UN-Habitat says.</p>
Pioneers of Change<p>Reimagining cities and communities for greater resilience and sustainability was a key topic at the<a href="https://www.weforum.org/events/pioneers-of-change-summit-2020" target="_blank"> World Economic Forum's Pioneers of Change Summit 2020</a>.</p><p>The digital event brought together innovators and stakeholders from around the world to explore solutions to the challenges facing enterprises, governments and society.</p><p>Opening the summit, <a href="https://www.weforum.org/events/pioneers-of-change-summit-2020/sessions/opening-plenary-8f731cbc65" target="_blank">Stephan Mergenthaler, the Forum's Head of Strategic Intelligence and a member of the Executive Committee</a>, said: "We need to change the way we produce, the way we live and interact in our cities to make this transition to net-zero emissions a reality…</p><p>"And as this year has illustrated so dramatically, we need to make every effort that we keep populations healthy, if we want to avoid jeopardizing all this progress."</p><p><em>Reposted with permission from </em><em><a href="https://www.weforum.org/agenda/2020/11/un-africa-recycled-plastic-housing/" target="_blank">World Economic Forum</a>.</em><a href="https://www.ecowatch.com/r/entryeditor/2649069252#/" target="_self"></a></p>
- What Happens to Recycled Plastic? Researchers Lift the Lid ... ›
- This Eco-Village Is Being Built From More Than 1 Million Recycled ... ›
By Brett Wilkins
Despite acknowledging that the move would lead to an increase in the 500 million to one billion birds that die each year in the United States due to human activity, the Trump administration on Friday published a proposed industry-friendly relaxation of a century-old treaty that protects more than 1,000 avian species.
- Hundreds of Thousands of Migratory Birds 'Falling Out of the Sky' in ... ›
- Scientists at Work: Sloshing Through Marshes To See How Birds ... ›
Many people shop online for everything from clothes to appliances. If they do not like the product, they simply return it. But there's an environmental cost to returns.
- Are We Doomed If We Don't Curb Carbon Emissions by 2030 ... ›
- California Winery Cuts Carbon Emissions With Lighter Bottles ... ›
- Wealthy One Percent Are Producing More Carbon Emissions Than ... ›