A Spanish company has devised a system to extract drinking water from thin air to supply arid regions where people are in desperate need. Reuters reports: "The goal is to help people," said Enrique Veiga, the 82-year-old engineer who invented the machine during a harsh drought in southern Spain in the 1990s. "The goal is to get to places like refugee camps that don't have drinking water." The devices made by his company, Aquaer, are already delivering clean, safe water to communities in Namibia and a Lebanese refugee camp. "In the villages we visited in Namibia, they were astonished, they didn't understand, asking where the water came from," he said.

The machines use electricity to cool air until it condenses into water, harnessing the same effect that causes condensation in air-conditioning units. While other water generators based on similar technology require high ambient humidity and low temperatures to function effectively, Veiga's machines work in temperatures of up to 40 Celsius (104F) and can handle humidity of between 10% and 15%. A small machine can produce 50-75 liters a day, and be easily carried on a trolley, but bigger versions can produce up to 5,000 liters a day.

An anonymous reader quotes a report from Motherboard: In a short CCTV video, a clerk at a small convenience store can be seen taking a bottle of coffee from a cooler and drinking it. When he returns to the cash register, an unseen person's voice emits from a speaker on the ceiling and interrogates him about whether he scanned and paid for the item. In another video, a cashier is standing behind the counter talking to someone just out of frame. There's a 'ding' sound, and the voice from above questions the cashier about who the other man is -- he's there to give the cashier a ride at the end of his shift -- then orders the man to stand on the other side of the counter.

The videos are just a few examples that Washington-based Live Eye Surveillance uses to demonstrate its flagship product: a surveillance camera system that keeps constant watch over shops and lets a remote human operator intervene whenever they see something they deem suspicious. For enough money -- $399 per month according to one sales email Motherboard viewed -- a person in Karnal, India will watch the video feed from your business 24/7. The monitors "act as a virtual supervisor for the sites, in terms of assuring the safety of the employees located overseas and requesting them to complete assigned tasks," according to a job posting on the company's website. [...] On its website, the company claims several major corporations as customers, including 7-Eleven, Shell, Dairy Queen, and Holiday Inn. Many of those businesses are franchised, and it isn't clear from Live Eye's materials whether the corporations have purchased the surveillance systems or if they've been bought by individual franchise owners.

An anonymous reader quotes a report from The Guardian: From espresso to instant, coffee is part of the daily routine for millions. Now research suggests the brew could be linked to a lower chance of developing or dying from chronic liver disease. Chronic liver disease is a major health problem around the world. According to the British Liver Trust, liver disease is the third leading cause of premature death in the UK, with deaths having risen 400% since 1970. Writing in the journal BMC Public Health, Roderick and colleagues report how they analyzed data from 494,585 participants in the UK Biobank -- a project designed to help unpick the genetic and environmental factors associated with particular conditions. All participants were aged 40 to 69 when they signed up to the project, with 384,818 saying they were coffee drinkers at the outset compared with 109,767 who did not consume the beverage.

The team looked at the liver health of the participants over a median period of almost 11 years, finding 3,600 cases of chronic liver disease, with 301 deaths, and 1,839 cases of simple fatty liver disease. The analysis revealed that after taking into account factors such as body mass index, alcohol consumption, and smoking status, those who drank any amount of coffee, and of any sort, had a 20% lower risk of developing chronic liver disease or fatty liver disease (taken together) than those who did not consume the brew. The coffee drinkers also had a 49% lower risk of dying from chronic liver disease. The team said the magnitude of the effect increased with the amount of coffee consumed, up to about three to four cups a day, "beyond which further increases in consumption provided no additional benefit." A reduction in risk was also found when instant, decaffeinated and ground coffee were considered separately -- although the latter linked to the largest effect.

"On January 15, a hacker tried to poison a water treatment plant that served parts of the San Francisco Bay Area," reports NBC News: It didn't seem hard. The hacker had the username and password for a former employee's TeamViewer account, a popular program that lets users remotely control their computers, according to a private report compiled by the Northern California Regional Intelligence Center in February and seen by NBC News. After logging in, the hacker, whose name and motive are unknown and who hasn't been identified by law enforcement, deleted programs that the water plant used to treat drinking water.

The hack wasn't discovered until the following day, and the facility changed its passwords and reinstalled the programs. "No failures were reported as a result of this incident, and no individuals in the city reported illness from water-related failures," the report, which did not specify which water treatment plant had been breached, noted.

The incident, which has not been previously reported, is one of a growing number of cyberattacks on U.S. water infrastructure that have recently come to light. The Bay Area attack was followed by a similar one in Oldsmar, Florida, a few weeks later. In that one, which made headlines around the world, a hacker also gained access to a TeamViewer account and raised the levels of lye in the drinking water to poisonous levels. An employee quickly caught the computer's mouse moving on its own, and undid the hacker's changes... The usernames and passwords for at least 11 Oldsmar employees have been traded on the dark web, said Kent Backman, a researcher at the cybersecurity company Dragos...

[A] number of facilities have been hacked in the past year, though most draw little attention. In Pennsylvania, a state water warning system has reportedly alerted its members to two recent hacks at water plants in the state. In another previously unreported hack, the Camrosa Water District in Southern California was infected with ransomware last summer. Whether hacks on water plants have recently become more common or just more visible is impossible to tell, because there is no comprehensive federal or industry accounting of water treatment plants' security... Unlike the electric grid, which is largely run by a smaller number of for-profit corporations, most of the more than 50,000 drinking water facilities in the U.S. are nonprofit entities.

Some that serve large populations are larger operations with dedicated cybersecurity staff. But rural areas in particular often get their water from small plants, often run by only a handful of employees who aren't dedicated cybersecurity experts, said Bryson Bort, a consultant on industrial cybersecurity systems. "They're even more fragmented at lower levels than anything we're used to talking about, like the electric grid," he said. "If you could imagine a community center run by two old guys who are plumbers, that's your average water plant."
NBC News also a spokesperson for America's Cybersecurity and Infrastructure Security Agency, who shared an internal survey conducted earlier this year. As many as 1 in 10 water and wastewater plants reported they'd recently found a critical cybersecurity vulnerability — and more than 80% of their major vulnerabilities were software flaws discovered before 2017.

An anonymous reader shares a report from The Conversation: As people around the world escape poverty, you might expect their energy use to increase. But my research in Nepal, Vietnam, and Zambia found the opposite: lower levels of deprivation were linked to lower levels of energy demand. What is behind this counterintuitive finding? [...] We found that households that do have access to clean fuels, safe water, basic education and adequate food -- that is, those not in extreme poverty -- can use as little as half the energy of the national average in their country. This is important, as it goes directly against the argument that more resources and energy will be needed for people in the global south to escape extreme poverty. The biggest factor is the switch from traditional cooking fuels, like firewood or charcoal, to more efficient (and less polluting) electricity and gas.

In Zambia, Nepal, and Vietnam, modern energy resources are extremely unfairly distributed -- more so than income, general spending, or even spending on leisure. As a consequence, poorer households use more dirty energy than richer households, with ensuing health and gender impacts. Cooking with inefficient fuels consumes a lot of energy, and even more when water needs to be boiled before drinking. But do households with higher incomes and more devices have a better chance of escaping poverty? Some do, but having higher incomes and mobile phones are not either prerequisites or guarantees of having basic needs satisfied. Richer households without access to electricity or sanitation are not spared from having malnourished children or health problems from using charcoal. Ironically, for most households, it is easier to obtain a mobile phone than a clean, nonpolluting fuel for cooking. Therefore, measuring progress via household income leads to an incomplete understanding of poverty and its deprivations.

So what? Are we arguing against the global south using more energy for development? No: instead of focusing on how much energy is used, we are pointing to the importance of collective services (like electricity, indoor sanitation and public transport) for alleviating the multiple deprivations of poverty. In addressing these issues we cannot shy away from asking why so many countries in the global south have such a low capacity to invest in those services. It has to do with the fact that poverty does not just happen: it is created via interlinked systems of wealth extraction such as structural adjustment, or high costs of servicing national debts. Given that climate change is caused by the energy use of a rich minority in the global north but the consequences are borne by the majority in the poorer global south, human development is not only a matter of economic justice but also climate justice. Investing in vital collective services underpins both.

Scientists have shed light on why everyday sounds such as chewing, drinking and breathing can be so maddening to some people that it drives them to despair. From a report: Now, brain scans performed by researchers at Newcastle University have revealed that people with misophonia have stronger connectivity between the part of the brain that processes sounds and the part of the so-called premotor cortex which handles mouth and throat muscle movements. When people with misophonia were played a "trigger sound," the scans showed that the brain region involved in mouth and throat movement was overactivated compared with a control group of volunteers who did not have the condition.

"What we are suggesting is that in misophonia the trigger sound activates the motor area even though the person is only listening to the sound," said Dr Sukhbinder Kumar, a neuroscientist at Newcastle University. "It makes them feel like the sounds are intruding into them." Kumar and his colleagues believe that trigger sounds activate what is called the brain's mirror neuron system. Mirror neurons are thought to fire when a person performs an action, but also when they see others make particular movements.

Between 1920 and 2020, the average human life span doubled. "There are few measures of human progress more astonishing than this..." argues author Steven Johnson.

In a recent 10,000-word excerpt from his new book Extra Life: A Short History of Living Longer (now also a four-part PBS/BBC series that's streaming online), Johnson tries to convey the magnitude of humanity's accomplishment: [I]t manifests in countless achievements, often quickly forgotten, sometimes literally invisible: the drinking water that's free of microorganisms, or the vaccine received in early childhood and never thought about again... The decade following the initial mass production of antibiotics marked the most extreme moment of life-span inequality globally. In 1950, when life expectancy in India and most of Africa had barely budged from the long ceiling of around 35 years, the average American could expect to live 68 years, while Scandinavians had already crossed the 70-year threshold. But the post-colonial era that followed would be characterized by an extraordinary rate of improvement across most of the developing world...

The forces behind these trends are complex and multivariate. Some of them involve increasing standards of living and the decrease in famine, driven by the invention of artificial fertilizer and the "green revolution"; some of them involve imported medicines and infrastructure — antibiotics, chlorinated drinking water — that were developed earlier. But some of the most meaningful interventions came from within the Global South itself, including a remarkably simple but powerful technique called oral rehydration therapy... the treatment is almost maddeningly simple: give people lots of boiled water to drink, supplemented with sugar and salts.... The Lancet called it "potentially the most important medical advance of the 20th century." As many as 50 million people are said to have died of cholera in the 19th century. In the first decades of the 21st century, fewer than 66,000 people were reported to have succumbed to the disease, on a planet with eight times the population...

Of all the achievements that brought the great escape to the entire world, though, one stands out: the vanquishing of smallpox... One key factor was a scientific understanding about the virus itself... Scientific innovations also played a crucial role in the eradication projects... But another key breakthrough was the development of institutions like the W.H.O. and the C.D.C. themselves. Starting in the mid-1960s, the W.H.O. — led by a C.D.C. official, D.A. Henderson — worked in concert with hundreds of thousands of health workers, who oversaw surveillance and vaccinations in the more than 40 countries still suffering from smallpox outbreaks. The idea of an international body that could organize the activity of so many people over such a vast geography, and over so many separate jurisdictions, would have been unthinkable at the dawn of the 19th century...

The list of new ideas that propelled the great escape is long and varied. Some of them took the form of tangible objects: X-ray machines, antiretroviral drugs. Some of them were legal or institutional in nature: the creation of the Food and Drug Administration, seatbelt laws. Some of them were statistical breakthroughs: new ways of tracking data, like the invention of randomized controlled trials, which finally allowed us to determine empirically if new treatments worked as promised, or proved a causal link between cigarettes and cancer. Some of them were meta-innovations in the way that new treatments are discovered, like the development of "rational drug design," which finally moved drug development from the Fleming model of serendipitous discovery to a process built on the foundations of chemistry...

The truth is the spike in global population has not been caused by some worldwide surge in fertility. What changed is people stopped dying... All those brilliant solutions we engineered to reduce or eliminate threats like smallpox created a new, higher-level threat: ourselves.

Many of the key problems we now face as a species are second-order effects of reduced mortality.

There is no such thing as a "safe" level of drinking, with increased consumption of alcohol associated with poorer brain health, according to a new study. CNN reports: In an observational study, which has not yet been peer-reviewed, researchers from the University of Oxford studied the relationship between the self-reported alcohol intake of some 25,000 people in the UK, and their brain scans. The researchers noted that drinking had an effect on the brain's gray matter -- regions in the brain that make up "important bits where information is processed," according to lead author Anya Topiwala, a senior clinical researcher at Oxford. "The more people drank, the less the volume of their gray matter," Topiwala said via email. "Brain volume reduces with age and more severely with dementia. Smaller brain volume also predicts worse performance on memory testing," she explained. "Whilst alcohol only made a small contribution to this (0.8%), it was a greater contribution than other 'modifiable' risk factors," she said, explaining that modifiable risk factors are "ones you can do something about, in contrast to aging."

The team also investigated whether certain drinking patterns, beverage types and other health conditions made a difference to the impact of alcohol on brain health. They found that there was no "safe" level of drinking -- meaning that consuming any amount of alcohol was worse than not drinking it. They also found no evidence that the type of drink -- such as wine, spirits or beer -- affected the harm done to the brain. However, certain characteristics, such as high blood pressure, obesity or binge-drinking, could put people at higher risk, researchers added.

Slashdot reader Hmmmmmm quotes the Guardian: A new study that checked American women's breast milk for PFAS contamination detected the toxic chemical in all 50 samples tested, and at levels nearly 2,000 times higher than the level some public health advocates advise is safe for drinking water. The findings "are cause for concern" and highlight a potential threat to newborns' health, the study's authors say. "The study shows that PFAS contamination of breast milk is likely universal in the US, and that these harmful chemicals are contaminating what should be nature's perfect food," said Erika Schreder, a co-author and science director with Toxic Free Future, a Seattle-based non-profit that pushes industry to find alternatives to the chemicals.

PFAS, or per and polyfluoroalkyl substances, are a class of about 9,000 compounds that are used to make products like food packaging, clothing and carpeting water and stain resistant. They are called "forever chemicals" because they do not naturally break down and have been found to accumulate in humans. They are linked to cancer, birth defects, liver disease, thyroid disease, plummeting sperm counts and a range of other serious health problems. The peer-reviewed study, published on Thursday in the Environmental Science and Technology journal, found PFAS at levels in milk ranging from 50 parts per trillion (ppt) to more than 1,850ppt.

There are no standards for PFAS in breast milk, but the public health advocacy organization Environmental Working Group puts its advisory target for drinking water at 1ppt, and the federal Agency for Toxic Substances and Disease Registry, within the Department of Health and Human Services, recommends as little as 14ppt in children's drinking water.

An anonymous reader quotes a report from ScienceAlert: [T]here's been a longstanding question over whether heavy water tastes the same as regular drinking water -- or whether its subtle isotopic variation yields a different taste that people may be able to perceive. "There is anecdotal evidence from the 1930s that the taste of pure D2O is distinct from the neutral one of pure H2O, being described mostly as 'sweet,'" an international team of researchers led by first authors and biochemists Natalie Ben Abu and Philip E. Mason explains in a new study. [I]n their new research, Ben Abu, Mason, and their team can finally confirm that there really is something a bit different about the taste of heavy water. "Despite the fact that the two isotopes are nominally chemically identical, we have shown conclusively that humans can distinguish by taste (which is based on chemical sensing) between H2O and D2O, with the latter having a distinct sweet taste," explains senior author and physical chemist Pavel Jungwirth from the Czech Academy of Sciences.

In a taste-testing experiment with 28 participants, most people were able to distinguish between H2O and D2O, and tests with mixed amounts of the waters revealed that greater proportions of heavy water were perceived as tasting sweeter. In tests with mice, however, the animals did not seem to prefer drinking heavy water over regular water, although they did show a preference for sugared water -- suggesting that in mice, D2O does not elicit the same sweet taste that people can perceive. Other taste tests conducted by the team suggest why this is so, indicating that human taste receptivity to D2O is mediated by the taste receptor TAS1R2/TAS1R3, which is known to respond to sweetness in both natural sugars and artificial sweeteners. Experiments in the lab with HEK 293 cells confirmed the same thing, showing robust responses in TAS1R2/TAS1R3 expressing cells when exposed to D2O. The findings are published in the journal Communications Biology.

An anonymous reader quotes a report from Ars Technica: Federal prosecutors have indicted a Kansas man for allegedly logging into a computer system at a public water system and tampering with the process for cleaning and disinfecting customers' drinking water. An indictment filed in US District Court for the District of Kansas said Wyatt A. Travnichek, 22, of Ellsworth County, Kansas, was an employee from January 2018 to January 2019 at the Ellsworth County Rural Water District No. 1. Also known as the Post Rock Water District, the facility serves more than 1,500 retail customers and 10 wholesale customers in eight Kansas counties. Part of Wyatt's responsibilities included remotely logging in to the water district's computer system to monitor the plant after hours.

In late March 2019, Wednesday's indictment said, Post Rock experienced a remote intrusion to its computer system that resulted in the shutdown of the facility's processes for ensuring water is safe to drink. "On or about March 27, 2019, in the District of Kansas, the defendant, Wyatt Travnichek, knowingly tampered with a public drinking water system, namely the Ellsworth County Rural Water District No. 1," prosecutors alleged. "To wit: he logged in remotely to Post Rock Rural Water District's computer system and performed activities that shut down processes at the facility which affect the facility's cleaning and disinfecting procedures with the intention of harming the Ellsworth County Rural Water District No. 1." Wednesday's indictment didn't say how Wyatt allegedly gained access to the Post Rock facility. "The indictment charges Wyatt with one count of tampering with a public water system and one count of reckless damage to a protected computer during unauthorized access," adds Ars. "If convicted, he faces a maximum sentence of 25 years in prison and $500,000 in fines."

couchslug shares a report from Ars Technica: At least five infants and children in Nevada have suffered acute non-viral hepatitis, resulting in liver failure, after drinking "alkalized" water by the brand "Real Water," local and federal regulators reported this week. At least six others fell ill with less severe conditions after drinking the water -- and additional reports continue to surface.

The initial five infants and children with liver failure fell ill in November 2020 and required hospitalization, but they have since recovered. They lived in four different households in southern Nevada. The other six ill people -- three adults and three children -- came from at least two of those same households and reported vomiting, nausea, loss of appetite, and fatigue, according to the Southern Nevada Health District. The health district is working to investigate the cases with the Food and Drug Administration. It's not yet clear what caused the illnesses but "to date, the consumption of 'Real Water' brand alkaline water was found to be the only common link identified between all the cases," the health district said." The FDA advises against drinking, cooking, selling, or serving "Real Water" alkaline water until more information is known. Real Water is asking that all retailers pull the product from the shelf immediately.

"Real Water claims that its water -- which is sold throughout the Southwest -- is infused with negative ions and has a pH of 9.0," reports Ars Technica. "The company makes vague references to unproven health benefits and suggests drinking the water leads to 'increased cellular hydration.' There are no established benefits to alkaline diets and water, and the human body maintains its own healthy pH." Two lawsuits have already been filed against the company.

This week in America, "continent-spanning winter storms triggered blackouts in Texas, Oklahoma, Mississippi and several other states," reports the New York Times. But that was just the beginning... One-third of oil production in the nation was halted. Drinking-water systems in Ohio were knocked offline. Road networks nationwide were paralyzed and vaccination efforts in 20 states were disrupted.

The crisis carries a profound warning. As climate change brings more frequent and intense storms, floods, heat waves, wildfires and other extreme events, it is placing growing stress on the foundations of the country's economy: Its network of roads and railways, drinking-water systems, power plants, electrical grids, industrial waste sites and even homes. Failures in just one sector can set off a domino effect of breakdowns in hard-to-predict ways....

Sewer systems are overflowing more often as powerful rainstorms exceed their design capacity. Coastal homes and highways are collapsing as intensified runoff erodes cliffs. Coal ash, the toxic residue produced by coal-burning plants, is spilling into rivers as floods overwhelm barriers meant to hold it back. Homes once beyond the reach of wildfires are burning in blazes they were never designed to withstand... The vulnerabilities show up in power lines, natural-gas plants, nuclear reactors and myriad other systems. Higher storm surges can knock out coastal power infrastructure. Deeper droughts can reduce water supplies for hydroelectric dams. Severe heat waves can reduce the efficiency of fossil-fuel generators, transmission lines and even solar panels at precisely the moment that demand soars because everyone cranks up their air-conditioners...

As freezing temperatures struck Texas, a glitch at one of two reactors at a South Texas nuclear plant, which serves 2 million homes, triggered a shutdown. The cause: Sensing lines connected to the plant's water pumps had frozen, said Victor Dricks, a spokesman for the federal Nuclear Regulatory Agency. It's also common for extreme heat to disrupt nuclear power. The issue is that the water used to cool reactors can become too warm to use, forcing shutdowns. Flooding is another risk. After a tsunami led to several meltdowns at Japan's Fukushima Daiichi power plant in 2011, the U.S. Nuclear Regulatory Commission told the 60 or so working nuclear plants in the United States, many decades old, to evaluate their flood risk to account for climate change. Ninety percent showed at least one type of flood risk that exceeded what the plant was designed to handle. The greatest risk came from heavy rain and snowfall exceeding the design parameters at 53 plants.
"All these issues are converging," said Robert D. Bullard, a professor at Texas Southern University who studies wealth and racial disparities related to the environment.

"And there's simply no place in this country that's not going to have to deal with climate change."

The New York Times reports: A large analysis looked at hundreds of factors that may influence the risk of heart failure and found one dietary factor in particular that was associated with a lower risk: drinking coffee...

The analysis included extensive, decades-long data from three large health studies with 21,361 participants, and used a method called machine learning that uses computers to find meaningful patterns in large amounts of data. "Usually, researchers pick things they suspect would be risk factors for heart failure — smoking, for example — and then look at smokers versus nonsmokers," said the senior author, Dr. David P. Kao, an assistant professor of medicine at the University of Colorado. "But machine learning identifies variables that are predictive of either increased or decreased risk, but that you haven't necessarily thought of."

Using this technique, Dr. Kao and his colleagues found 204 variables that are associated with the risk for heart failure. Then they looked at the 41 strongest factors, which included, among others, smoking, marital status, B.M.I., cholesterol, blood pressure and the consumption of various foods. The analysis is in Circulation: Heart Failure. In all three studies, coffee drinking was associated more strongly than any other dietary factor with a decreased long-term risk for heart failure.

Drinking a cup a day or less had no effect, but two cups a day conferred a 31 percent reduced risk, and three cups or more reduced risk by 29 percent...

Should you start drinking coffee or increase the amount you already drink to reduce your risk for heart failure? "We don't know enough from the results of this study to recommend this," said Dr. Kao, adding that additional research would be needed.

A significant portion of Cuba's available drinking water is lost through its leaky and antiquated pipelines -- more than 50 percent, by some estimates. From a report: In recent years, infrastructure problems have been compounded by droughts and rising temperatures. For much of the population, running water is available only sporadically -- in some cases, for one or two hours a day, every few days. While it flows, residents store the available water in cisterns or tanks, which then serve as potential breeding environments for mosquitoes.

Earth's ice is melting faster today than in the mid-1990s, new research suggests, as climate change nudges global temperatures ever higher. From a report: Altogether, an estimated 28 trillion metric tons of ice have melted away from the world's sea ice, ice sheets and glaciers since the mid-1990s. Annually, the melt rate is now about 57 percent faster than it was three decades ago, scientists report in a study published Monday in the journal The Cryosphere. "It was a surprise to see such a large increase in just 30 years," said co-author Thomas Slater, a glaciologist at Leeds University in Britain. While the situation is clear to those depending on mountain glaciers for drinking water, or relying on winter sea ice to protect coastal homes from storms, the world's ice melt has begun to grab attention far from frozen regions, Slater noted.

During his first moments in the Oval Office on Wednesday, President Biden returned the United States to the Paris climate accord and directed federal agencies to begin unraveling Donald Trump's environmental policies. The Washington Post reports: Biden's executive order recommitting the United States to the international struggle to slow global warming fulfilled a campaign promise and represented a stark repudiation of the "America First" approach of Trump, who officially withdrew the nation from the Paris agreement Nov. 4 after years of disparaging it. Biden also ordered federal agencies to review scores of climate and environmental policies enacted during the Trump years and, if possible, to quickly reverse them. Nearly half of the regulations the new administration is targeting come from the Environmental Protection Agency, on issues as varied as drinking water, dangerous chemicals and gas-mileage standards.

Biden is expected to take even more sweeping action next Wednesday, according to a document obtained by The Washington Post. He plans to sign an executive order elevating climate in domestic and national security policy; direct "science and evidence based decision-making" in federal agencies; reestablish the Presidential Council of Advisers on Science and Technology and announce that U.S. data that will help underpin the Climate Leadership Summit that Biden will host in Washington in late April. "While many of Biden's actions Wednesday will take effect over time -- the country will again formally become a party to the Paris agreement 30 days from now," the report adds. He's also planning to rescind the presidential permit Trump granted the Keystone XL pipeline to transport crude oil from Canada across the border into the United States, and is instructing the EPA and Transportation Department to strengthen fuel efficiency standards for cars and light trucks, which Trump weakened.

Furthermore, the report says Biden "plans to impose a temporary moratorium on all oil and natural gas leasing activities in the Arctic National Wildlife Refuge, which is home to caribou, polar bears and Indigenous people."

An anonymous reader quotes a report from The Conversation: When wildfires swept through the hills near Santa Cruz, California, in 2020, they released toxic chemicals into the water supplies of at least two communities. One sample found benzene, a carcinogen, at 40 times the state's drinking water standard. Our testing has now confirmed a source of these chemicals, and it's clear that wildfires aren't the only blazes that put drinking water systems at risk. In a new study, we heated plastic water pipes commonly used in buildings and water systems to test how they would respond to nearby fires. The results, released Dec. 14, show how easily wildfires could trigger widespread drinking water contamination. They also show the risks when only part of a building catches fire and the rest remains in use. In some of our tests, heat exposure caused more than 100 chemicals to leach from the damaged plastics.

To determine if plastic pipes could be responsible for drinking water contamination after wildfires, we exposed commonly available plastic pipes to heat. The temperatures were similar to the heat from a wildfire that radiates toward buildings but isn't enough to cause the pipes to catch fire. We tested several popular plastic drinking water pipes, including high-density polyethylene (HDPE), crosslinked polyethylene (PEX), polyvinyl chloride (PVC) and chlorinated polyvinylchloride (CPVC). Benzene and other chemicals were generated inside the plastic pipes just by heating. After the plastics cooled, these chemicals then leached into the water. It happened at temperatures as low as 392 degrees Fahrenheit. Fires can exceed 1,400 degrees. While researchers previously discovered that plastics could release benzene and other chemicals into the air during heating, this new study shows heat-damaged plastics can directly leach dozens of toxic chemicals into water. What can be done about the contamination? The report says a community can stop water contamination if they can quickly isolate the damaged pipes. Rinsing heat-damaged pipes can also work, but some plastic pipes require more than 100 days of nonstop water rinsing to be safe to use. If that's the case, the pipes may need to be replaced instead.

"Water companies can install network isolation valves and backflow prevention devices, to prevent contaminated water moving from a damaged building into the utility pipe network," the report adds. "Insurance companies can use pricing to encourage property owners and cities to install fire-resistant metal pipes instead of plastic. Rules for keeping vegetation away from meter boxes and buildings can also lessen the chance heat reaches plastic water system components."

How people spend their time is similar in many ways across countries: we all sleep, work, eat, and enjoy leisure. But there are also important differences in the freedom people have to spend time on the things they value most. Studying how people across the world spend their time provides an important perspective for understanding living conditions, economic opportunities, and general well-being. A study by Our World in Data: Consider sleeping, for example. From this sample of countries, South Koreans sleep the least -- averaging 7 hours and 51 minutes of sleep every day. In India and the US, at the other end of the spectrum, people sleep an hour more on average. Work is another important activity where we see large differences. Countries are sorted by paid work hours in the chart (check the source link) -- from highest to lowest. In China and Mexico people spend, on an average day, almost twice as much time on paid work as people in Italy and France do. This is a general pattern: People in richer countries can afford to work less. Keep in mind that this chart shows the average for all people in the working age bracket, from 15 to 64 years, whether they are actually employed or not.

Differences in demographics, education and economic prosperity all contribute to these inequalities in work and time use. But what's clear in the chart here (check the source link) is that there are also some differences in time use that are not well explained by economic or demographic differences. In the UK, for example, people spend more time working than in France; but in both countries people report spending a similar amount of time on leisure activities. Cultural differences are likely to play a role here. The French seem to spend much more time eating than the British -- and in this respect the data actually goes in line with stereotypes about food culture. People in France, Greece, Italy and Spain report spending more time eating than people in most other European countries. The country where people spend the least time eating and drinking is the USA (63 minutes).

Dead mink are rising from their graves in Denmark after a rushed cull over fears of a coronavirus mutation led to thousands being slaughtered and buried in shallow pits -- from which some are now emerging. From a report: "As the bodies decay, gases can be formed," Thomas Kristensen, a national police spokesman, told the state broadcaster DR. "This causes the whole thing to expand a little. In this way, in the worst cases, the mink get pushed out of the ground." Police in West Jutland, where several thousand mink were buried in a mass grave on a military training field, have tried to counter the macabre phenomenon by shovelling extra soil on top of the corpses, which are in a 1 metre-deep trench. "This is a natural process," Kristensen said. "Unfortunately, one metre of soil is not just one metre of soil -- it depends on what type of soil it is. The problem is that the sandy soil in West Jutland is too light. So we have had to lay more soil on top." Adding to the popular concern, local media reported that the animals may also have been buried too close to lakes and underground water reserves, prompting fears of possible contamination of ground and drinking water supplies.