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Toilet paper is a giant waste of resources
Americans consume the most toilet paper in the world but it's a very wasteful product to manufacture, according to the numbers.
Customers stock up on toilet paper at a Target store in Orlando, Florida in response to the coronavirus (COVID-19) pandemic. March 19, 2020.
Credit: Paul Hennessy / Echoes Wire/Barcroft Media via Getty Images.
- Toilet paper consumption is unsustainable and requires a tremendous amount of resources to produce.
- Americans use the most toilet paper in the world and have been hoarding it due to coronavirus.
- Alternatives to toilet paper are gaining more popularity with the public.
A surprising byproduct of the coronavirus pandemic has been its effect on the availability of toilet paper. Americans and shoppers across the globe have vacuumed supermarket shelves, stockpiling toilet paper and other paper products with pre-apocalyptic urgency. The resulting shortage places focus on toilet paper and the wastefulness involved in its production and disposal.
The numbers about toilet paper consumption are staggering. Around the world, the equivalent of 270,000 trees are flushed down the toilet or find their way into landfills every day. About 10% of that — the equivalent of 27,000 trees would be from toilet paper. That's about 15 million per year. Per person, this adds up to about 384 trees over a lifetime.
Americans consume the most toilet paper in the world, using up about 34 million rolls per day. Annually, this amounts to about 36.5 billion rolls. Impressive numbers to say the least. Another important fact to consider is that as much as 70% of the world does not use toilet paper, so obviously there are other solutions.
The Scientific American reported it takes about 473,587,500,000 gallons of water to produce all that toilet paper for Americans and 253,000 tons of chlorine to bleach it. In terms of electricity, the manufacturing requires about 17.3 terawatts of electricity annually.
To break this down further, it takes up to 37 gallons of water to make a single roll of toilet paper. That same single roll of TP also requires 1.3 kilowatt/hours (KWh) of electricity and 1.5 pounds of wood to make.
This chart from Statista highlights 2018 data on toilet consumption around the world, with North America coming in decidedly ahead of other parts of the world.
In terms of per-country consumption, Germany, UK and Japan also use up a lot of toilet paper every year as this chart shows --
While Americans clearly love toilet paper, there's no big danger of it truly running out any time soon, say the experts. The shortages we've all experienced are related to a spike in demand, but the overall pipeline is not affected and will continue to churn out the precious product.
What to do instead of toilet paper?
Install a bidet. You knew this option was coming. In light of the toilet paper shortages, Americans are actually showing more interest in adopting them, with bidet sales growing eight times. There are a number of great sustainable bidet companies like Tushy you can turn to. They also grow their toilet paper from bamboo and utilize no plastic wrapping. Bamboo is rapidly renewable and compared to regular trees, absorbs about 30% less carbon dioxide.
While bidets also incur some environmental costs from the use of water, on the whole they are significantly less resource-hungry and waste-producing than the process of making toilet paper. A bidet uses up about one eighth of a gallon of water to clean and flush.
Here are some more bidets ideas.
A few snapshots of the toilet paper crunch around the world:
A senior citizen gets the last pack of toilet rolls at Sainsbury's Supermarket on March 19, 2020 in Northwich, United Kingdom.
Photo by Christopher Furlong/Getty Images
Women buy toilet paper from tradesman in street market by the City Wall, Xian, China. March 14, 2020.
Photo by Tim Graham/Getty Images
Customers purchase toilet paper at a Target store in Orlando, FL during the panic shopping. March, 2020.
Credit: Paul Hennessy / Echoes Wire/Barcroft Media via Getty Images
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‘Designer baby’ book trilogy explores the moral dilemmas humans may soon create
How would the ability to genetically customize children change society? Sci-fi author Eugene Clark explores the future on our horizon in Volume I of the "Genetic Pressure" series.
18 January, 2021
Surprising Science
- A new sci-fi book series called "Genetic Pressure" explores the scientific and moral implications of a world with a burgeoning designer baby industry.
- It's currently illegal to implant genetically edited human embryos in most nations, but designer babies may someday become widespread.
- While gene-editing technology could help humans eliminate genetic diseases, some in the scientific community fear it may also usher in a new era of eugenics.
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<div class="amazon-assets-widget__title" style="display: block;">Genetic Pressure Volume I: Baby Steps</div>
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<p>Imagine it's 2045. You start hearing rumors from your well-heeled friends about a mysterious corporation based on an undisclosed island that's offering an unprecedented service: the ability to genetically design your baby.</p><p>The baby will have some of your genetics, and some genetics from a sperm or egg donor, selected by you. But the rest of your child's genetic profile will be engineered by science. These changes will make it impossible for your child to develop genetic diseases. They'll also allow you to customize your child for dozens of traits, including intelligence level, emotional disposition, sexual orientation, height, skin tone, hair color, and eye color, to name a few. </p><p>This raises unsettling philosophical questions for some customers. "When does my child stop being my child?" they ask the corporate representatives. These wary customers are reminded of how risky it is to reproduce the old-fashioned way. The Better Genetics Corporation's motto sums it up: "Only God plays dice—humans don't have to."</p><p>This is the world described in a new science-fiction series by Eugene Clark titled <a href="http://bigth.ink/38VhJn3" target="_blank" rel="noopener noreferrer">"Genetic Pressure"</a>, which explores the moral and scientific implications of a future in which designer babies are becoming a major industry. The first book begins with the story of Rachel, a renowned horse breeder who befriends a billionaire client, and soon gets the funding to visit the tropical island on which the Better Genetics Corporation is headquartered. </p><p>There, corporate executives walk her through the process of designing a baby—an experience that feels like an uncanny mix between visiting a doctor and designing a luxury car. The series is told from multiple perspectives, serving as a deep dive into a complex moral web that today's scientists may already be weaving.</p>
<blockquote>[T]he introduction of designer babies would create a labyrinth of philosophical dilemmas that society is only beginning to explore. </blockquote>
<p>Case in point: In 2018, Chinese scientist He Jiankui announced that he had helped create the world's first genetically engineered babies. Using the gene-editing tool CRISPR on embryos, He Jiankui modified a gene called <a href="https://ghr.nlm.nih.gov/gene/CCR5" target="_blank">CCR5</a>, which enables HIV to enter and infect immune system cells. His goal was to engineer children that were immune to the virus.</p><p>It's unclear whether he succeeded. But what's certain is that the experiment shocked the international scientific community, which generally agreed that it's unethical to conduct gene-editing procedures on humans, given that scientists don't yet fully understand the consequences.</p><p>"This experiment is monstrous," Julian Savulescu, a professor of practical ethics at the University of Oxford, told <a href="https://www.theguardian.com/science/2018/nov/26/worlds-first-gene-edited-babies-created-in-china-claims-scientist" target="_blank"><em>The Guardian</em></a>. "The embryos were healthy. No known diseases. Gene editing itself is experimental and is still associated with off-target mutations, capable of causing genetic problems early and later in life, including the development of cancer."</p><p>Importantly, He Jiankui wasn't treating a disease, but rather genetically engineering babies to prevent the future contraction of a virus. These kinds of changes are heritable, meaning the experiment could have major downstream effects on future generations. So, too, would a designer-baby industry, even if scientists can do it safely.</p><p>With major implications on inequality, discrimination, sexuality, and our conceptions of life, the introduction of designer babies would create a labyrinth of philosophical dilemmas that society is only beginning to explore. </p>
<a href="http://bigth.ink/38VhJn3" ><img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTI2MTEzNi9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY0NDcxMzY4M30.5fwCPH_6sQ0RF19aAH4FQFue9HFJykzdEc0Xka1TY04/img.jpg?width=980" id="affdd" class="rm-shortcode" data-rm-shortcode-id="76374e8775bd9441a338cf513bb1fa55" data-rm-shortcode-name="rebelmouse-image" data-width="924" data-height="520" /></a>
Tribalism and discrimination
<p>One question the "Genetic Pressure" series explores: What would tribalism and discrimination look like in a world with designer babies? As designer babies grow up, they could be noticeably different from other people, potentially being smarter, more attractive and healthier. This could breed resentment between the groups—as it does in the series.</p><p>"[Designer babies] slowly find that 'everyone else,' and even their own parents, becomes less and less tolerable," author Eugene Clark told Big Think. "Meanwhile, everyone else slowly feels threatened by the designer babies."</p><p>For example, one character in the series who was born a designer baby faces discrimination and harassment from "normal people"—they call her "soulless" and say she was "made in a factory," a "consumer product." </p><p>Would such divisions emerge in the real world? The answer may depend on who's able to afford designer baby services. If it's only the ultra-wealthy, then it's easy to imagine how being a designer baby could be seen by society as a kind of hyper-privilege, which designer babies would have to reckon with. </p><p>Even if people from all socioeconomic backgrounds can someday afford designer babies, people born designer babies may struggle with tough existential questions: Can they ever take full credit for things they achieve, or were they born with an unfair advantage? To what extent should they spend their lives helping the less fortunate? </p>Sexuality dilemmas
<p>Sexuality presents another set of thorny questions. If a designer baby industry someday allows people to optimize humans for attractiveness, designer babies could grow up to find themselves surrounded by ultra-attractive people. That may not sound like a big problem.</p><p>But consider that, if designer babies someday become the standard way to have children, there'd necessarily be a years-long gap in which only some people are having designer babies. Meanwhile, the rest of society would be having children the old-fashioned way. So, in terms of attractiveness, society could see increasingly apparent disparities in physical appearances between the two groups. "Normal people" could begin to seem increasingly ugly.</p><p>But ultra-attractive people who were born designer babies could face problems, too. One could be the loss of body image. </p><p>When designer babies grow up in the "Genetic Pressure" series, men look like all the other men, and women look like all the other women. This homogeneity of physical appearance occurs because parents of designer babies start following trends, all choosing similar traits for their children: tall, athletic build, olive skin, etc. </p><p>Sure, facial traits remain relatively unique, but everyone's more or less equally attractive. And this causes strange changes to sexual preferences.</p><p>"In a society of sexual equals, they start looking for other differentiators," he said, noting that violet-colored eyes become a rare trait that genetically engineered humans find especially attractive in the series.</p><p>But what about sexual relationships between genetically engineered humans and "normal" people? In the "Genetic Pressure" series, many "normal" people want to have kids with (or at least have sex with) genetically engineered humans. But a minority of engineered humans oppose breeding with "normal" people, and this leads to an ideology that considers engineered humans to be racially supreme. </p>Regulating designer babies
<p>On a policy level, there are many open questions about how governments might legislate a world with designer babies. But it's not totally new territory, considering the West's dark history of eugenics experiments.</p><p>In the 20th century, the U.S. conducted multiple eugenics programs, including immigration restrictions based on genetic inferiority and forced sterilizations. In 1927, for example, the Supreme Court ruled that forcibly sterilizing the mentally handicapped didn't violate the Constitution. Supreme Court Justice Oliver Wendall Holmes wrote, "… three generations of imbeciles are enough." </p><p>After the Holocaust, eugenics programs became increasingly taboo and regulated in the U.S. (though some states continued forced sterilizations <a href="https://www.uvm.edu/~lkaelber/eugenics/" target="_blank">into the 1970s</a>). In recent years, some policymakers and scientists have expressed concerns about how gene-editing technologies could reanimate the eugenics nightmares of the 20th century. </p><p>Currently, the U.S. doesn't explicitly ban human germline genetic editing on the federal level, but a combination of laws effectively render it <a href="https://academic.oup.com/jlb/advance-article/doi/10.1093/jlb/lsaa006/5841599#204481018" target="_blank" rel="noopener noreferrer">illegal to implant a genetically modified embryo</a>. Part of the reason is that scientists still aren't sure of the unintended consequences of new gene-editing technologies. </p><p>But there are also concerns that these technologies could usher in a new era of eugenics. After all, the function of a designer baby industry, like the one in the "Genetic Pressure" series, wouldn't necessarily be limited to eliminating genetic diseases; it could also work to increase the occurrence of "desirable" traits. </p><p>If the industry did that, it'd effectively signal that the <em>opposites of those traits are undesirable. </em>As the International Bioethics Committee <a href="https://academic.oup.com/jlb/advance-article/doi/10.1093/jlb/lsaa006/5841599#204481018" target="_blank" rel="noopener noreferrer">wrote</a>, this would "jeopardize the inherent and therefore equal dignity of all human beings and renew eugenics, disguised as the fulfillment of the wish for a better, improved life."</p><p><em>"Genetic Pressure Volume I: Baby Steps"</em><em> by Eugene Clark is <a href="http://bigth.ink/38VhJn3" target="_blank">available now.</a></em></p>
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Massive 'Darth Vader' isopod found lurking in the Indian Ocean
The father of all giant sea bugs was recently discovered off the coast of Java.
19 August, 2020
A close up of Bathynomus raksasa
SJADE 2018
Surprising Science
- A new species of isopod with a resemblance to a certain Sith lord was just discovered.
- It is the first known giant isopod from the Indian Ocean.
- The finding extends the list of giant isopods even further.
<p>Humanity knows surprisingly little about the ocean depths. An often-repeated bit of evidence for this is the fact that humanity has done a better job mapping the surface of Mars than the bottom of the sea. The creatures we find lurking in the watery abyss often surprise even the most dedicated researchers with their unique features and bizarre behavior. <br> <br> A recent expedition off the coast of Java discovered a new isopod species remarkable for its size and resemblance to Darth Vader.</p>
The ocean depths are home to many creatures that some consider to be unnatural.
<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yMzU2NzY4My9vcmlnaW4ucG5nIiwiZXhwaXJlc19hdCI6MTYxNTUwMzg0NX0.BTK3zVeXxoduyvXfsvp4QH40_9POsrgca_W5CQpjVtw/img.png?width=980" id="b6fb0" class="rm-shortcode" data-rm-shortcode-id="2739ec50d9f9a3bd0058f937b6d447ac" data-rm-shortcode-name="rebelmouse-image" data-width="1512" data-height="2224" />Bathynomus raksasa specimen (left) next to a closely related supergiant isopod, B. giganteus (right)
<p>According to<a href="https://www.livescience.com/supergiant-isopod-newfound-species.html" target="_blank" rel="dofollow"> LiveScience</a>, the Bathynomus genus is sometimes referred to as "Darth Vader of the Seas" because the crustaceans are shaped like the character's menacing helmet. Deemed Bathynomus raksasa ("raksasa" meaning "giant" in Indonesian), this cockroach-like creature can grow to over 30 cm (12 inches). It is one of several known species of giant ocean-going isopod. Like the other members of its order, it has compound eyes, seven body segments, two pairs of antennae, and four sets of <a href="https://www.livescience.com/supergiant-isopod-newfound-species.html" target="_blank" rel="noopener noreferrer dofollow">jaws</a>.</p><p>The incredible size of this species is likely a result of deep-sea gigantism. This is the tendency for creatures that inhabit deeper parts of the ocean to be much larger than closely related species that live in shallower waters. B. raksasa appears to make its home between 950 and 1,260 meters (3,117 and 4,134 ft) below sea <a href="https://news.nus.edu.sg/research/new-species-supergiant-isopod-uncovered" target="_blank" rel="noopener noreferrer dofollow">level</a>. </p><p>Perhaps fittingly for a creature so creepy looking, that is the lower sections of what is commonly called <a href="https://en.wikipedia.org/wiki/Mesopelagic_zone" target="_blank" rel="noopener noreferrer dofollow">The Twilight Zone</a><em>, </em>named for the lack of light available at such depths. </p><p>It isn't the only giant isopod, <a href="https://en.wikipedia.org/wiki/Giant_isopod" target="_blank">far from it</a>. Other species of ocean-going isopod can get up to 50 cm long (20 inches) and also look like they came out of a nightmare. These are the unusual ones, though. Most of the time, isopods stay at much more reasonable <a href="https://indianexpress.com/article/explained/explained-raksasa-cockroach-from-the-deep-the-stuff-nightmares-are-made-of-6513281/" target="_blank" rel="noopener noreferrer dofollow">sizes</a>. </p><p>The discovery of this new species was published in <a href="https://zookeys.pensoft.net/article/53906/" target="_blank" rel="noopener noreferrer dofollow">ZooKeys</a>. The remainder of the specimens from the trip are still being analyzed. The full report will be published <a href="https://www.futurity.org/deep-sea-giant-isopod-bathynomus-raksasa-2422042/" target="_blank" rel="noopener noreferrer dofollow">shortly</a>.<em> </em></p><blockquote class="instagram-media" data-instgrm-captioned data-instgrm-permalink="https://www.instagram.com/p/BhDgDqtlPfV/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="12" style=" background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:540px; min-width:326px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);"><div style="padding:16px;"> <a href="https://www.instagram.com/p/BhDgDqtlPfV/?utm_source=ig_embed&utm_campaign=loading" style=" background:#FFFFFF; line-height:0; padding:0 0; text-align:center; text-decoration:none; width:100%;" target="_blank"> <div style=" display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #F4F4F4; border-radius: 50%; 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font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:550; line-height:18px;"> View this post on Instagram</div></div><div style="padding: 12.5% 0;"></div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"><div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"></div> <div style="background-color: #F4F4F4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"></div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"></div></div><div style="margin-left: 8px;"> <div style=" background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"></div> <div style=" width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg)"></div></div><div style="margin-left: auto;"> <div style=" width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"></div> <div style=" background-color: #F4F4F4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"></div> <div style=" width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"></div></div></div></a> <p style=" margin:8px 0 0 0; padding:0 4px;"> <a href="https://www.instagram.com/p/BhDgDqtlPfV/?utm_source=ig_embed&utm_campaign=loading" style=" color:#000; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none; word-wrap:break-word;" target="_blank">During an expedition, there are some animals which you find unexpectedly, while there are others that you hope to find. One of the animal that we hoped to find was a deep sea cockroach affectionately known as Darth Vader Isopod. The staff on our expedition team could not contain their excitement when they finally saw one, holding it triumphantly in the air! #SJADES2018</a></p> <p style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; line-height:17px; margin-bottom:0; margin-top:8px; overflow:hidden; padding:8px 0 7px; text-align:center; text-overflow:ellipsis; white-space:nowrap;">A post shared by <a href="https://www.instagram.com/lkcnhm/?utm_source=ig_embed&utm_campaign=loading" style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px;" target="_blank"> LKCNHM</a> (@lkcnhm) on <time style=" font-family:Arial,sans-serif; font-size:14px; line-height:17px;" datetime="2018-04-02T04:30:06+00:00">Apr 1, 2018 at 9:30pm PDT</time></p></div></blockquote> <script async src="//www.instagram.com/embed.js"></script>
What benefit does this find have for science? And is it as evil as it looks?
<div class="rm-shortcode" data-media_id="7XqcvwWp" data-player_id="FvQKszTI" data-rm-shortcode-id="8506fcd195866131efb93525ae42dec4"> <div id="botr_7XqcvwWp_FvQKszTI_div" class="jwplayer-media" data-jwplayer-video-src="https://content.jwplatform.com/players/7XqcvwWp-FvQKszTI.js"> <img src="https://cdn.jwplayer.com/thumbs/7XqcvwWp-1920.jpg" class="jwplayer-media-preview" /> </div> <script src="https://content.jwplatform.com/players/7XqcvwWp-FvQKszTI.js"></script> </div> <p>The discovery of a new species is always a cause for celebration in zoology. That this is the discovery of an animal that inhabits the deeps of the sea, one of the least explored areas humans can get to, is the icing on the cake.</p><p>Helen Wong of the National University of Singapore, who co-authored the species' description, explained the importance of the discovery:</p><p>"The identification of this new species is an indication of just how little we know about the oceans. There is certainly more for us to explore in terms of biodiversity in the deep sea of our region." </p><p>The animal's visual similarity to Darth Vader is a result of its compound eyes and the curious shape of its <a href="https://lkcnhm.nus.edu.sg/research/sjades2018/" target="_blank" rel="noopener noreferrer dofollow" style="">head</a>. However, given the location of its discovery, the bottom of the remote seas, it may be associated with all manner of horrifically evil Elder Things and <a href="https://en.wikipedia.org/wiki/Cthulhu" target="_blank" rel="dofollow">Great Old Ones</a>. <em></em></p>
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These are the world’s greatest threats in 2021
We look back at a year ravaged by a global pandemic, economic downturn, political turmoil and the ever-worsening climate crisis.
20 January, 2021
Luis Ascui/Getty Images
Politics & Current Affairs
Billions are at risk of missing out on the digital leap forward, as growing disparities challenge the social fabric.
<p>
In the medium-term, the global economy will be threatened by the knock-on effects of the coronavirus crisis, while geopolitical stability will be critically fragile over the next 5 to 10 years. Environmental risks continue to threaten: they remain top risks by likelihood and impact in this year's survey.
</p><p>
<a href="https://www.weforum.org/reports/the-global-risks-report-2021" target="_blank">The Global Risks Report 2021</a> is the 16th edition of the Forum's annual analysis and looks back at a year ravaged by a global pandemic, economic downturn, political turmoil and the ever-worsening climate crisis. The report explores how countries and businesses can act in the face of these risks.
</p><p>
Unsurprisingly, one of the big changes between this year and last, in terms of risks, has been brought about by the COVID-19 coronavirus pandemic. The risk posed by infectious diseases is now ranked at number one, while in 2020 it came in 10th place.
</p>
<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTUwMzcyMi9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY2MjA4NzMyOX0.KJBlcw3i4ZS6alcYghvT0cPjzcZwScPkkbB-6450pJE/img.jpg?width=980" id="030c0" class="rm-shortcode" data-rm-shortcode-id="3d069bd85c60fdb0f185dbac6aa49f41" data-rm-shortcode-name="rebelmouse-image" data-width="787" data-height="643" />
Image: Global Risks Report 2021
<h3>Widespread effects</h3><p>"The immediate human and economic costs of COVID-19 are severe," the report says. "They threaten to scale back years of progress on reducing global poverty and inequality and further damage social cohesion and global cooperation."</p><p>For those reasons, the pandemic demonstrates why infectious diseases hits the top of the impact list. Not only has COVID-19 led to widespread loss of life, it is holding back economic development in some of the poorest parts of the world, while amplifying wealth inequalities across the globe.</p><p>At the same time, there are concerns the fight against the pandemic is taking resources away from other critical health challenges - including a <a href="https://www.weforum.org/agenda/2020/09/charts-covid19-malnutrition-educaion-mental-health-children-world/" target="_blank" rel="noopener noreferrer">disruption to measles vaccination programmes</a>.</p><h3><img src="https://assets.weforum.org/editor/Y1-45gAUa8m52QhRrAN6BFYV4dayfBU70XBpOaiJV5U.PNG" alt="Global Risks Network 2021"></h3><h3>Climate concerns</h3><p>But despite the inescapable fallout from COVID-19, it is climate-related matters that make up the bulk of this year's risk list, which the report describes as "an existential threat to humanity." Despite a drop in carbon emissions caused by lockdowns and disruption to international trade and travel, there are concerns that as economies start to recover, emissions will soar.</p><p>The 2021 risks report draws upon data and insights from a wide array of respondents via the World Economic Forum's Global Risks Perception Survey. The survey was completed by over 650 members of the Forum's diverse leadership communities.</p><p>One of those communities is the Global Shapers – the Forum's network of young people driving dialogue, action and change. For them, climate-related risks are seen as "the most likely and most impactful long-term risks." They also sound a note of caution about the dangers of "youth disillusionment" around the world.</p><p>"They see personal risks as immediate threats, macro risks in the medium term and fundamental geopolitical risks in the long term," the report says.</p><p>Among the short-term threats, which are likely to come to fruition within the next two years, are infectious diseases, livelihood crises, digital inequality and youth disillusionment.</p><p>As for medium-term risks in next three-to-five years, the Global Shapers identified asset bubble bursts, IT infrastructure breakdown, price instability and debt crises.</p><p>In the longer term, the community voiced concerns about weapons of mass destruction, state collapse, biodiversity loss and adverse technological advances.</p>
<h3>Countering risks</h3><p>Alongside the risks listed, the report reflects on responses to COVID-19 to draw lessons that could bolster global resilience.</p><p>These include formulating analytical frameworks, creating new forms of partnership and building trust through clear and consistent communication.</p><p>It also includes recommendations to help countries and businesses act, rather than react, in the face of risks.</p><p>The Forum's upcoming virtual <a href="https://www.weforum.org/events/the-davos-agenda-2021" target="_blank" rel="noopener noreferrer">Davos Agenda</a> event will bring together global leaders to discuss how to advance the principles, policies and partnerships needed to do this.</p><p>Reprinted with permission of the <a target="_blank" href="https://www.weforum.org/" rel="noopener noreferrer">World Economic Forum</a>. Read the <a target="_blank" href="https://www.weforum.org/agenda/2021/01/world-greatest-threats-2021/" rel="noopener noreferrer">original article</a>.</p>
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Columbia study finds new way to extract energy from black holes
A new study explains how a chaotic region just outside a black hole's event horizon might provide a virtually endless supply of energy.
19 January, 2021
Credit: NASA's Goddard Space Flight Center
Surprising Science
- In 1969, the physicist Roger Penrose first proposed a way in which it might be possible to extract energy from a black hole.
- A new study builds upon similar ideas to describe how chaotic magnetic activity in the ergosphere of a black hole may produce vast amounts of energy, which could potentially be harvested.
- The findings suggest that, in the very distant future, it may be possible for a civilization to survive by harnessing the energy of a black hole rather than a star.
<p>Like the Sun, the stars scattered throughout our Milky Way and beyond produce unfathomable amounts of energy. But so, too, do the objects we can't see: black holes.</p>
<p>For decades, scientists have wondered whether it's possible to extract energy from black holes, which <a href="https://bigthink.com/surprising-science/black-hole-animation" target="_self">are the mysterious regions of spacetime</a> that form when stars collapse into themselves. Siphoning energy from these areas of ultra-condensed matter could provide a virtually endless power supply for deep-space civilizations, if physically and practically possible.</p>
<p>While undoubtedly the stuff of science fiction, the idea is far from new. </p>
<p>In 1969, the physicist and Nobel Laureate Roger Penrose proposed it might be possible to extract energy from a rotating black hole. He thought this could occur in a black hole's ergosphere. </p>
The ergosphere
<p>The ergosphere is a region just outside a black hole's event horizon, the boundary of a black hole beyond which nothing, not even light, can escape. But light and matter just outside the event horizon, in the ergosphere, would also be affected by the immense gravity of the black hole. Objects in this zone would spin in the same direction as the black hole at incredibly fast speeds, similar to objects floating around the center of a whirlpool.</p><p>The Penrose process states, in simple terms, that an object could enter the ergosphere and break into two pieces. One piece would head toward the event horizon, swallowed by the black hole. But if the other piece managed to escape the ergosphere, it could emerge with more energy than it entered with.</p><p>The movie "Interstellar" provides an example of the Penrose process. Facing a fuel shortage on a deep-space mission, the crew makes a last-ditch effort to return home by entering the ergosphere of a blackhole, ditching part of their spacecraft, and "slingshotting" away from the black hole with vast amounts of energy.</p><p>In a recent study published in the American Physical Society's <a href="https://journals.aps.org/prd/abstract/10.1103/PhysRevD.103.023014" target="_blank" style="">Physical Review D</a><em>, </em>physicists Luca Comisso and Felipe A. Asenjo used similar ideas to describe another way energy could be extracted from a black hole. The idea centers on the magnetic fields of black holes.</p><p style="margin-left: 20px;">"Black holes are commonly surrounded by a hot 'soup' of plasma particles that carry a magnetic field," Comisso, a research scientist at Columbia University and lead study author, told <a href="https://news.columbia.edu/energy-particles-magnetic-fields-black-holes" target="_blank" rel="noopener noreferrer">Columbia News</a>.</p><img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTUwMzQyNi9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY2Nzg5NTgxM30.4aMhAHcj3YfXKEIvA7vH71EHIzxcJpTO3iulrpfnxSM/img.jpg?width=980" id="1cdf5" class="rm-shortcode" data-rm-shortcode-id="01d88a42afd0185a64424ecc5f420e4c" data-rm-shortcode-name="rebelmouse-image" data-width="494" data-height="494" />
Ergosphere representation
<p>In the ergosphere of a rotating black hole, magnetic field lines are constantly breaking and reconnecting at fast speeds. The researchers theorized that when these lines reconnect, plasma particles shoot out in two different directions. One flow of particles shoots off against the direction of the spinning black hole, eventually getting "swallowed" by the black hole. But the other flow shoots in the same direction as the spin, potentially gaining enough velocity to escape the black hole's gravitational pull.</p><p>The researchers proposed that this occurs because the breaking and reconnecting of magnetic field lines can generate negative-energy particles. If the negative-energy particles get "swallowed" by the black hole, the positive particles would theoretically be exponentially accelerated.</p><p style="margin-left: 20px;">"Our theory shows that when magnetic field lines disconnect and reconnect, in just the right way, they can accelerate plasma particles to negative energies and large amounts of black hole energy can be extracted," Comisso said. "It is like a person could lose weight by eating candy with negative calories."</p><img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNTUwMjMyOC9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY0MDA5NjA1MX0.nK1C4xO65fb1y4wdm9GmcDGZBvarQ2gyWdUXtZQcMOI/img.jpg?width=980" id="6482f" class="rm-shortcode" data-rm-shortcode-id="2bcedc4f32a64049524f4126311e3c28" data-rm-shortcode-name="rebelmouse-image" alt="Black hole" data-width="985" data-height="574" />
<p class=""><br></p>Black hole
Event Horizon Telescope Collaboration
<p>While there might not be immediate applications for the theory, it could help scientists better understand and observe black holes. On an abstract level, the findings may expand the limits of what scientists imagine is possible in deep space.</p><p style="margin-left: 20px;">"Thousands or millions of years from now, humanity might be able to survive around a black hole without harnessing energy from stars," Comisso said. "It is essentially a technological problem. If we look at the physics, there is nothing that prevents it."</p>
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Mind & Brain
A psychiatric diagnosis can be more than an unkind ‘label’
A popular and longstanding wave of thought in psychology and psychotherapy is that diagnosis is not relevant for practitioners in those fields.
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