Private equity firms are using US public sector workers' retirement savings to fund fossil fuel projects pumping more than a billion tonnes of greenhouse gas emissions into the atmosphere every year, according to an analysis. From a report: They have ploughed more than $1tn into the energy sector since 2010, often buying into old and new fossil fuel projects and, thanks to exemptions from many financial disclosures, operating them outside the public eye, the researchers say. In many cases they are mortgaging workers' futures by taking the money they have put away for old age and investing it in assets that risk serious damage to the climate, the report claims.

"Public sector workers' money, through national, state, and retirement pensions, provides much of the capital for private equity firms' energy investments, but there is limited disclosure to the pension fund managers that the deferred earnings of their beneficiaries have potential climate impacts," it says. Researchers at Americans for Financial Reform Education Fund, Global Energy Monitor and Private Equity Stakeholder Project assessed the holdings of 21 private equity firms, overseeing a combined $6tn in assets under management. Together, the analysis found that the 21 firms were funding projects responsible for releasing more than 1.17bn tons of CO2 equivalent (tCO2e) a year.

An anonymous reader quotes a report from Politico: It will soon be illegal for public and private universities in California to consider an applicant's relationship to alumni or donors when deciding whether to admit them. Gov. Gavin Newsom on Monday signed a ban on the practice known as legacy admissions, a change that will affect prestigious institutions including Stanford University and the University of Southern California. California's law, which will take effect Sept. 1, 2025, is the nation's fifth legacy admissions ban, but only the second that will apply to private colleges. "In California, everyone should be able to get ahead through merit, skill, and hard work," Newsom said in a statement. "The California Dream shouldn't be accessible to just a lucky few, which is why we're opening the door to higher education wide enough for everyone, fairly."

Like other states, California won't financially penalize violators, but it will post the names of violators on the state Department of Justice's website. California will also add to data reporting requirements that it implemented in 2022, when private colleges had to start sharing the percentage of admitted students who were related to donors and alumni. Schools that run afoul of the new law will also have to report more granular demographic information about their incoming classes to the state, including the race and income of enrolled students as well as their participation in athletics. [...] Public universities in California won't be affected by the change. California State University does not consider legacy or donor ties, and the University of California system stopped doing so in 1998, two years after California voters banned race-conscious admissions through a statewide ballot measure.

When it comes to professional certifications, the long-running nonprofit Linux Professional Institute boasts they've issued 250,000, making them the world's largest Linux/Open Source certification body. And last week they announced a "strategic alliance" with the Open Source Initiative (OSI), which will now be "participating in development and maintenance of these programs."

The announcement points out that the Open Source Initiative already has many distinct responsibilities. Besides creating the Open Source Definition — and certifying that Open Source licenses meet the requirements of Open Source software — the OSI's mission is to "encourage the growth of Open Source communities around the world," which includes "educational and outreach efforts to spread Open Source principles."

So the ultimate goal is "strengthening Linux and Open Source communities," according to the announcement, by "nurturing the growth of more highly skilled professionals," with the OSI encouraging more people to get certifications for employers. The Open Source movement "has never been in greater need of educated professionals," says OSI executive director Stefano Maffulli, "to drive the next leap forward in Open Source understanding, innovation, and adoption... "This partnership with LPI is one in a series of initiatives that will increase accessibility to the certifications and community participation that Open Source needs to thrive."

And the LPI's executive director says it's their group's mission "to promote the use of open source by supporting the people who work with it. A closer relationship with OSI makes a valuable contribution to this effort."

The move "reaffirms the commitment of LPI and OSI to enhance the adoption of Linux and Open Source technology," according to the announcement.

"Dozens of Fortune 100 organizations" have unknowingly hired North Korean IT workers using fake identities, generating revenue for the North Korean government while potentially compromising tech firms, according to Google's Mandiant unit. "In a report published Monday [...], researchers describe a common scheme orchestrated by the group it tracks as UNC5267, which has been active since 2018," reports The Record. "In most cases, the IT workers 'consist of individuals sent by the North Korean government to live primarily in China and Russia, with smaller numbers in Africa and Southeast Asia.'" From the report: The remote workers "often gain elevated access to modify code and administer network systems," Mandiant found, warning of the downstream effects of allowing malicious actors into a company's inner sanctum. [...] Using stolen identities or fictitious ones, the actors are generally hired as remote contractors. Mandiant has seen the workers hired in a variety of complex roles across several sectors. Some workers are employed at multiple companies, bringing in several salaries each month. The tactic is facilitated by someone based in the U.S. who runs a laptop farm where workers' laptops are sent. Remote technology is installed on the laptops, allowing the North Koreans to log in and conduct their work from China or Russia.

Workers typically asked for their work laptops to be sent to different addresses than those listed on their resumes, raising the suspicions of companies. Mandiant said it found evidence that the laptops at these farms are connected to a "keyboard video mouse" device or multiple remote management tools including LogMeIn, GoToMeeting, Chrome Remote Desktop, AnyDesk, TeamViewer and others. "Feedback from team members and managers who spoke with Mandiant during investigations consistently highlighted behavior patterns, such as reluctance to engage in video communication and below-average work quality exhibited by the DPRK IT worker remotely operating the laptops," Mandiant reported.

In several incident response engagements, Mandiant found the workers used the same resumes that had links to fabricated software engineer profiles hosted on Netlify, a platform often used for quickly creating and deploying websites. Many of the resumes and profiles included poor English and other clues indicating the actor was not based in the U.S. One characteristic repeatedly seen was the use of U.S-based addresses accompanied by education credentials from universities outside of North America, frequently in countries such as Singapore, Japan or Hong Kong. Companies, according to Mandiant, typically don't verify credentials from universities overseas. Further reading: How Not To Hire a North Korean IT Spy

Speaking of California, its governor Gavin Newsom has signed into law a a bill that requires schools to limit or ban the use of smartphones, amid a growing consensus that excess usage can increase the risk of mental illness and impair learning. From a report: Thirteen other states this year have banned or restricted cellphones in school or recommended local educators do so, after Florida led the way by banning phones in class in 2023, according to Education Week. California, with nearly 5.9 million public school students, has followed the lead of its own Los Angeles County, whose school board banned smartphones for its 429,000 students in June.

That same month U.S. Surgeon General Vivek Murthy called for a warning label on social media platforms, akin to those on cigarette packages, likening the problem to a mental health emergency. Murthy cited a study in the medical journal JAMA showing adolescents who spend more than three hours a day on social media may be at heightened risk of mental illness, while referring to a Gallup poll showing the average teen spends 4.8 hours per day on social media. California's bill, which passed 76-0 in the state assembly and 38-1 in the senate, requires school boards or other governing bodies to develop a policy to limit or prohibit student use of smartphones on campus by July 1, 2026, and update the policy every five years.

An anonymous reader quotes a report from CBC News: Inside a bustling unit at St. Michael's Hospital in downtown Toronto, one of Shirley Bell's patients was suffering from a cat bite and a fever, but otherwise appeared fine -- until an alert from an AI-based early warning system showed he was sicker than he seemed. While the nursing team usually checked blood work around noon, the technology flagged incoming results several hours beforehand. That warning showed the patient's white blood cell count was "really, really high," recalled Bell, the clinical nurse educator for the hospital's general medicine program. The cause turned out to be cellulitis, a bacterial skin infection. Without prompt treatment, it can lead to extensive tissue damage, amputations and even death. Bell said the patient was given antibiotics quickly to avoid those worst-case scenarios, in large part thanks to the team's in-house AI technology, dubbed Chartwatch. "There's lots and lots of other scenarios where patients' conditions are flagged earlier, and the nurse is alerted earlier, and interventions are put in earlier," she said. "It's not replacing the nurse at the bedside; it's actually enhancing your nursing care."

A year-and-a-half-long study on Chartwatch, published Monday in the Canadian Medical Association Journal, found that use of the AI system led to a striking 26 percent drop in the number of unexpected deaths among hospitalized patients. The research team looked at more than 13,000 admissions to St. Michael's general internal medicine ward -- an 84-bed unit caring for some of the hospital's most complex patients -- to compare the impact of the tool among that patient population to thousands of admissions into other subspecialty units. "At the same time period in the other units in our hospital that were not using Chartwatch, we did not see a change in these unexpected deaths," said lead author Dr. Amol Verma, a clinician-scientist at St. Michael's, one of three Unity Health Toronto hospital network sites, and Temerty professor of AI research and education in medicine at University of Toronto. "That was a promising sign."

The Unity Health AI team started developing Chartwatch back in 2017, based on suggestions from staff that predicting deaths or serious illness could be key areas where machine learning could make a positive difference. The technology underwent several years of rigorous development and testing before it was deployed in October 2020, Verma said. Dr. Amol Verma, a clinician-scientist at St. Michael's Hospital who helped lead the creation and testing of CHARTwatch, stands at a computer. "Chartwatch measures about 100 inputs from [a patient's] medical record that are currently routinely gathered in the process of delivering care," he explained. "So a patient's vital signs, their heart rate, their blood pressure ... all of the lab test results that are done every day." Working in the background alongside clinical teams, the tool monitors any changes in someone's medical record "and makes a dynamic prediction every hour about whether that patient is likely to deteriorate in the future," Verma told CBC News.

In 2015 Amazon purchased chip designer Annapurna Labs, remembers IEEE Spectrum, "and proceeded to design CPUs, AI accelerators, servers, and data centers as a vertically-integrated operation."

The article argues that while AMD, Nvidia, and other big-name processor companies may also want to control the full stack (purchasing server, software, and interconnect companies) — Amazon Web Services "got there ahead of most of the competition." (IEEE Spectrum interviews Ali Saidi, technical lead for the AWS Graviton series of CPUs, and Rami Sinno, director of engineering at Annapurna Labs, on "the advantage of vertically-integrated design — and Amazon-scale...") Sinno: I was working at Arm, and I was looking for the next adventure, looking at where the industry is heading and what I want my legacy to be. I looked at two things: One is vertically integrated companies, because this is where most of the innovation is — the interesting stuff is happening when you control the full hardware and software stack and deliver directly to customers.

And the second thing is, I realized that machine learning, AI in general, is going to be very, very big. I didn't know exactly which direction it was going to take, but I knew that there is something that is going to be generational, and I wanted to be part of that. I already had that experience prior when I was part of the group that was building the chips that go into the Blackberries; that was a fundamental shift in the industry. That feeling was incredible, to be part of something so big, so fundamental. And I thought, "Okay, I have another chance to be part of something fundamental."

[...] At the end of the day, our responsibility is to deliver complete servers in the data center directly for our customers. And if you think from that perspective, you'll be able to optimize and innovate across the full stack. It might not be at the transistor level or at the substrate level or at the board level. It could be something completely different. It could be purely software. And having that knowledge, having that visibility, will allow the engineers to be significantly more productive and delivery to the customer significantly faster. We're not going to bang our head against the wall to optimize the transistor where three lines of code downstream will solve these problems, right...?

We've had very good luck with recent college grads. Recent college grads, especially the past couple of years, have been absolutely phenomenal. I'm very, very pleased with the way that the education system is graduating the engineers and the computer scientists that are interested in the type of jobs that we have for them.
It's an interesting glimpse into the unique world of designing chips at Amazon.

Graviton technical lead Saidi: I've been here about seven and a half years. When I joined AWS, I joined a secret project at the time. I was told: "We're going to build some Arm servers. Tell no one...

"In chip design, there are many different competing optimization points. You have all of these conflicting requirements, you have cost, you have scheduling, you've got power consumption, you've got size, what DRAM technologies are available and when you're going to intersect them... It ends up being this fun, multifaceted optimization problem to figure out what's the best thing that you can build in a timeframe. And you need to get it right."

With online dating apps, "Americans have increasingly been marrying someone more like themselves," reports Bloomberg, citing new research that says this accounts for roughly half of the rise in household income inequality between 1980 and 2020: Using data from the Census Bureau's American Community Survey from 2008 to 2021, when online dating quickly became prevalent, the economists found that women became slightly more selective when choosing partners based on age, while men became slightly more selective based on education. But when the researchers compared that with data on married couples from 1960 and 1980, they found that people in the recent period increasingly went for partners with the same wage and education levels...

Overall, the predominance of online apps to find a future partner has led to a 3-percentage-point increase in the Gini coefficient — a widely used measure of income inequality, the research shows.
The reseachers were from the Federal Reserve Banks of Dallas and St. Louis, and from Haverford College, according to the article — which also includes this quote from their paper.

"We find that the increase in income inequality over the past half a century is explained to a large extent by sorting on vertical characteristics, such as income and skill, and their interaction with education."

Wired interviews America's foreign policy chief, Secretary of State Antony Blinken, about U.S. digital polices, starting with a new "cybersecurity bureau" created in 2022 (which Wired previously reported includes "a crash course in cybersecurity, telecommunications, privacy, surveillance, and other digital issues.") Look, what I've seen since coming back to the State Department three and a half years ago is that everything happening in the technological world and in cyberspace is increasingly central to our foreign policy. There's almost a perfect storm that's come together over the last few years, several major developments that have really brought this to the forefront of what we're doing and what we need to do. First, we have a new generation of foundational technologies that are literally changing the world all at the same time — whether it's AI, quantum, microelectronics, biotech, telecommunications. They're having a profound impact, and increasingly they're converging and feeding off of each other.

Second, we're seeing that the line between the digital and physical worlds is evaporating, erasing. We have cars, ports, hospitals that are, in effect, huge data centers. They're big vulnerabilities. At the same time, we have increasingly rare materials that are critical to technology and fragile supply chains. In each of these areas, the State Department is taking action. We have to look at everything in terms of "stacks" — the hardware, the software, the talent, and the norms, the rules, the standards by which this technology is used.

Besides setting up an entire new Bureau of Cyberspace and Digital Policy — and the bureaus are really the building blocks in our department — we've now trained more than 200 cybersecurity and digital officers, people who are genuinely expert. Every one of our embassies around the world will have at least one person who is truly fluent in tech and digital policy. My goal is to make sure that across the entire department we have basic literacy — ideally fluency — and even, eventually, mastery. All of this to make sure that, as I said, this department is fit for purpose across the entire information and digital space.
Wired notes it was Blinken's Department that discovered China's 2023 breach of Microsoft systems. And on the emerging issue of AI, Blinken cites "incredible work done by the White House to develop basic principles with the foundational companies." The voluntary commitments that they made, the State Department has worked to internationalize those commitments. We have a G7 code of conduct — the leading democratic economies in the world — all agreeing to basic principles with a focus on safety. We managed to get the very first resolution ever on artificial intelligence through the United Nations General Assembly — 192 countries also signing up to basic principles on safety and a focus on using AI to advance sustainable development goals on things like health, education, climate. We also have more than 50 countries that have signed on to basic principles on the responsible military use of AI. The goal here is not to have a world that is bifurcated in any way. It's to try to bring everyone together.

Long-time Slashdot reader theodp writes: "The Impact of AI on Computer Science Education" recounts an experiment Eric Klopfer conducted in his undergrad CS class at MIT. He divided the class into three groups and gave them a programming task to solve in the Fortran language, which none of them knew. Reminiscent of how The Three Little Pigs used straw, sticks, and bricks to build their houses with very different results, Klopfer allowed one group to use ChatGPT to solve the problem, while the second group was told to use Meta's Code Llama LLM, and the third group could only use Google. The group that used ChatGPT, predictably, solved the problem quickest, while it took the second group longer to solve it. It took the group using Google even longer, because they had to break the task down into components.

Then, the students were tested on how they solved the problem from memory, and the tables turned. The ChatGPT group "remembered nothing, and they all failed," recalled Klopfer. Meanwhile, half of the Code Llama group passed the test. The group that used Google? Every student passed.

"This is an important educational lesson," said Klopfer. "Working hard and struggling is actually an important way of learning. When you're given an answer, you're not struggling and you're not learning. And when you get more of a complex problem, it's tedious to go back to the beginning of a large language model and troubleshoot it and integrate it." In contrast, breaking the problem into components allows you to use an LLM to work on small aspects, as opposed to trying to use the model for an entire project, he says. "These skills, of how to break down the problem, are critical to learn."

When most students get As, grading loses all meaning as a way to encourage exceptional work and recognize excellence. From a report: Grade inflation at American universities is out of control. The statistics speak for themselves. In 1950, the average GPA at Harvard was estimated at 2.6 out of 4. By 2003, it had risen to 3.4. Today, it stands at 3.8. The more elite the college, the more lenient the standards. At Yale, for example, 80% of grades awarded in 2023 were As or A minuses. But the problem is also prevalent at less selective colleges. Across all four-year colleges in the U.S., the most commonly awarded grade is now an A. Some professors and departments, especially in STEM disciplines, have managed to uphold more stringent criteria. A few advanced courses attract such a self-selecting cohort of students that virtually all of them deserve recognition for genuinely excellent work. But for the most part, the grading scheme at many institutions has effectively become useless. An A has stopped being a mark of special academic achievement.

If everyone outside hard-core engineering, math or pre-med courses can easily get an A, the whole system loses meaning. It fails to make distinctions between different levels of achievement or to motivate students to work hard on their academic pursuits. All the while, it allows students to pretend -- to themselves and to others -- that they are performing exceptionally well. Worse, this system creates perverse incentives. To name but one, it actively punishes those who take risks by enrolling in truly challenging courses. All of this contributes to the strikingly poor record of American colleges in actually educating their students. As Richard Arum and Josipa Roksa showed in their 2011 book "Academically Adrift," the time that the average full-time college student spent studying dropped by half in the five decades after 1960, falling to about a dozen hours a week. A clear majority of college students "showed no significant progress on tests of critical thinking, complex reasoning and writing," with about half failing to make any improvements at all in their first two years of higher education.

Typing skills among Generation Z have declined sharply, despite their digital nativity, according to recent data. The U.S. Department of Education reports that only 2.5% of high school graduates in 2019 took a keyboarding course, down from 44% in 2000.

Many educators assume Gen Z already possesses typing skills due to their familiarity with technology. However, access to devices doesn't automatically translate into proficiency, WSJ reports. Some schools are addressing this gap by introducing typing competitions and formal instruction when students receive Chromebooks.

The shift towards mobile devices is contributing to the decline in traditional typing skills. Canvas, an online learning platform, reports that 39% of student assignments between March and May were uploaded from mobile devices, contrasting sharply with teachers who completed over 90% of their work on computers.

Daniel Mthimkhulu, former chief "engineer" at South Africa's Passenger Rail Agency (Prasa), was sentenced to 15 years in prison for claiming false engineering degrees and a doctorate. His fraudulent credentials allowed him to rise rapidly within Prasa, contributing to significant financial losses and corruption within the agency. The BBC reports: Once hailed for his successful career, Daniel Mthimkhulu was head of engineering at the Passenger Rail Agency of South Africa (Prasa) for five years -- earning an annual salary of about [$156,000]. On his CV, the 49-year-old claimed to have had several mechanical engineering qualifications, including a degree from South Africa's respected Witwatersrand University as well as a doctorate from a German university. However, the court in Johannesburg heard that he had only completed his high-school education.

Mthimkhulu was arrested in July 2015 shortly after his web of lies began to unravel. He had started working at Prasa 15 years earlier, shooting up the ranks to become chief engineer, thanks to his fake qualifications. The court also heard how he had forged a job offer letter from a German company, which encouraged Prasa to increase his salary so the agency would not lose him. He was also at the forefront of a 600m rand deal to buy dozens of new trains from Spain, but they could not be used in South Africa as they were too high. [...] In an interview from 2019 with local broadcaster eNCA, Mthimkhulu admitted that he did not have a PhD. "I failed to correct the perception that I have it. I just became comfortable with the title. I did not foresee any damages as a result of this," he said.

Europe's food and farming lobbies have recognized the need to eat less meat after hammering out a shared vision for the future of agriculture with green groups and other stakeholders. From a report: The wide-ranging report calls for "urgent, ambitious and feasible" change in farm and food systems and acknowledges that Europeans eat more animal protein than scientists recommend. It says support is needed to rebalance diets toward plant-based proteins such as better education, stricter marketing and voluntary buyouts of farms in regions that intensively rear livestock. The stakeholders also agreed on the need for a major rethink of subsidies, calling for a "just transition fund" to help farmers adopt sustainable practices, and targeted financial support to those who need it most.

The European Commission president, Ursula von der Leyen, who commissioned the report to quell furious farmer protests at the start of the year, said the results would feed into a planned vision for agriculture that she will present in the first 100 days of her new mandate. "We share the same goal," said Von der Leyen. "Only if farmers can live off their land will they invest in more sustainable practices. And only if we achieve our climate and environmental goals together will farmers be able to continue making a living." Animal agriculture is one of the biggest drivers of climate breakdown and the destruction of natural habitats, but European leaders have made little effort to steer diets heavy in meat and milk to whole grains and plant-based sources of protein. The report did not set targets for meat production, such as culling herds, but called for support to help shift dietary habits, such as free school meals, more detailed labels, and tax reductions on healthy and sustainable food products.

OpenAI said that ChatGPT now has more than 200 million weekly active users -- twice as many as last year. Axios reports: OpenAI also said that 92% of Fortune 500 companies are using its products and that usage of its automated API has doubled since the release of GPT-4o mini in July. "People are using our tools now as a part of their daily lives, making a real difference in areas like healthcare and education -- whether it's helping with routine tasks, solving hard problems, or unlocking creativity," CEO Sam Altman said in a statement to Axios. Further reading: Apple Is in Talks To Invest in OpenAI, WSJ Says

A new national survey reveals a concerning trend in school engagement among Gen Z students aged 12-18. The joint Gallup and Walton Family Foundation study [PDF] found that middle and high school students find classes less interesting than last year, with only half feeling positively challenged. Student engagement has dropped significantly since 2023, with 10% fewer respondents saying they learned something interesting at school in the past week.

Non-college-bound students report feeling particularly disconnected, with only 41% saying schoolwork challenges them positively compared to 55% of college-bound peers. Despite only half of students planning to attend four-year colleges, schools heavily emphasize higher education. 68% of high schoolers report hearing "a lot" about college, while only 23% hear as much about vocational alternatives.

Bruce66423 shares a report from the Los Angeles Times: In a milestone breakthrough, more than half of Caltech's incoming undergraduate class this fall will be women (source paywalled; alternative source) for the first time in its 133-year history. The class of 113 women and 109 men comes 50 years after Caltech graduated its first class of undergraduate women, who were admitted in 1970. "What this means for young women is that we are a place that can be representative of them and their experiences ... where they can grow and thrive and excel and become really impressive, extraordinary scientists and engineers and go on to make a difference in this really research-heavy profession," said Ashley Pallie, dean of admissions

Gloria L. Blackwell, chief executive of the American Assn. of University Women, lauded Caltech's achievement as critical progress in reducing the substantial gap of women in science, technology, engineering and math. Although women hold about 60% of degrees in biological sciences, they represent only about 18% in computer science and 20% in engineering, Blackwell said. Research has shown that boys are not better at math and science than girls, but a persistent message in society says otherwise -- and especially discourages Latinas and Black girls from pursuing the fields because they face discrimination and have less access to role models, resources and opportunities, the AAUW says. The report notes that Caltech isn't the first educational institution to reach gender parity in STEM. Harvey Mudd College, a small private institution in Claremont, "enrolled more women than men in 2010 for the first time in its history and in 2014 graduated more women than men in engineering," reports the LA Times. "Today, women make up 52.8% of majors in computer science, 50.5% in engineering and 68.2% in mathematical and computational biology."

UC Berkeley is another powerful producer of STEM graduates, with "nearly half of students majoring in those fields [identifying] as women or nonbinary." However, the report notes that the field they enter varies significantly. "They make up more than two-thirds of students in biological and biomedical sciences, but about one-third in engineering, computer and informational sciences, and mathematics and statistics."

France is to trial a ban on mobile phones at school for pupils up to the age of 15, seeking to give children a "digital pause" that, if judged successful, could be rolled out nationwide from January. From a report: Just under 200 secondary schools will take place in the experiment that will require youngsters to hand over phones on arrival at reception. It takes the prohibition on the devices further than a 2018 law that banned pupils at primary and secondary schools from using their phones on the premises but allowed them to keep possession of them. Announcing the trial on Tuesday, the acting education minister, Nicole Belloubet, said the aim was to give youngsters a "digital pause." If the trial proves successful, the ban would be introduced in all schools from January, Belloubet said.

A commission set up by the president, Emmanuel Macron, expressed concern that the overexposure of children to screens was having a detrimental effect on their health and development. A 140-page report published in March concluded there was "a very clear consensus on the direct and indirect negative effects of digital devices on sleep, on being sedentary, a lack of physical activity and the risk of being overweight and even obese ... as well as on sight."

An anonymous reader quotes a report from the Associated Press: A U.S. government report expected to stir debate concluded that fluoride in drinking water at twice the recommended limit is linked with lower IQ in children. The report, based on an analysis of previously published research, marks the first time a federal agency has determined -- "with moderate confidence" -- that there is a link between higher levels of fluoride exposure and lower IQ in kids. While the report was not designed to evaluate the health effects of fluoride in drinking water alone, it is a striking acknowledgment of a potential neurological risk from high levels of fluoride. Fluoride strengthens teeth and reduces cavities by replacing minerals lost during normal wear and tear, according to the U.S. Centers for Disease Control and Prevention. The addition of low levels of fluoride to drinking water has long been considered one of the greatest public health achievements of the last century.

The long-awaited report released Wednesday comes from the National Toxicology Program, part of the Department of Health and Human Services. It summarizes a review of studies, conducted in Canada, China, India, Iran, Pakistan, and Mexico, that concludes that drinking water containing more than 1.5 milligrams of fluoride per liter is consistently associated with lower IQs in kids. The report did not try to quantify exactly how many IQ points might be lost at different levels of fluoride exposure. But some of the studies reviewed in the report suggested IQ was 2 to 5 points lower in children who'd had higher exposures.

Since 2015, federal health officials have recommended a fluoridation level of 0.7 milligrams per liter of water, and for five decades before the recommended upper range was 1.2. The World Health Organization has set a safe limit for fluoride in drinking water of 1.5. The report said that about 0.6% of the U.S. population -- about 1.9 million people -- are on water systems with naturally occurring fluoride levels of 1.5 milligrams or higher. The 324-page report did not reach a conclusion about the risks of lower levels of fluoride, saying more study is needed. It also did not answer what high levels of fluoride might do to adults.

An anonymous reader quotes a report from Interesting Engineering: A student has successfully developed a small nuclear fusion reactor as part of his A-Levels. The 17-year-old built the reactor to generate neutrons as part of his Extended Project Qualification (EPQ). Notably, Cesare Mencarini's work is claimed to be the only nuclear reactor built in a school environment. Showcased at the Cambridge Science Festival recently, the nuclear reactor achieved plasma a few months ago. It also gave Mencarini an A* in his A-Level results, according to reports. [...] Mencarini maintained that the goal of the reactor is to create conditions that are required for fusion. However, the project couldn't get same pressure that's generated by the Sun due to its own gravity. Therefore, to make atoms hot enough, the teen used high voltage.

The reactor achieved plasma in June. "Two days ago I achieved plasma, which was brilliant and I'm massively happy about this," wrote Mencarini in a LinkedIn post. "The system is running thanks to a Leybold Trivac E2 roughing pump, which allows me to achieve a minimum pressure of 8E-3 Torr." At that time, he mentioned that Pfeiffer TPH062 would be used later to achieve fusion. "This turbomolecular pump is currently isolated by a VAT Throttling Valve." "The grid is then attached to a 30kV rated High Voltage Feedthrough connected to a 5kV Unilab power supply, which allows me to use the fusor in my school (It is limited to a 2mA output). While running the fusor I experimented with 2 grids which you can see in the images," added Mencarini in the post.