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Canada

13-Year-Old Wins Science Fair with 'Death Ray' Experiment. Sort of... (cnn.com) 83

It was an idea first proposed by Archimedes, reports CNN. But now, "Brenden Sener, 13, of London, Ontario, has won two gold medals and a London Public Library award for his minuscule version of the contraption — a supposed war weapon made up of a large array of mirrors designed to focus and aim sunlight on a target, such as a ship, and cause combustion — according to a paper published in the January issue of the Canadian Science Fair Journal." For his 2022 science project, Sener recreated the Archimedes screw, a device for raising and moving water. But he didn't stop there. Sener found the death ray to be one of the more intriguing devices — sometimes referred to as the heat ray. Historical writings suggested that Archimedes used "burning mirrors" to start anchored ships on fire during the siege of Syracuse from 214 to 212 BC...

There is no archaeological evidence that the contraption existed, as Sener noted in his paper, but many have tried to recreate the mechanism to see if the ancient invention could be feasible. In Sener's attempt at the ray, he set up a heating lamp facing four small concave mirrors, each tilted to direct light at a piece of cardboard with an X marked at the focal point. In this project he designed for the 2023 Matthews Hall Annual Science Fair, Sener hypothesized that as the mirrors focused light energy onto the cardboard, the temperature of the target would increase with each mirror added.

In his experiment, Sener conducted three trials with two different light bulb wattages, 50 watts and 100 watts. Each additional mirror increased the temperature notably, he found... The temperature of the cardboard with just the heating lamp and the 100-watt light bulb and no mirrors was about 81 degrees Fahrenheit (27.2 degrees Celsius). After waiting for the cardboard to cool, Sener added one mirror and retested. The focal point's temperature increased to almost 95 F (34.9 C), he found. The greatest increase occurred with the addition of the fourth mirror. The temperature with three mirrors aimed at the target was almost 110 F (43.4 C), but the addition of a fourth mirror increased the temperature by about 18 F (10 C) to 128 F (53.5 C)...

Sener was not attempting to light anything on fire, as "a heating lamp does not generate anywhere near enough heat as the sun would," he said. But he believes that with the use of the sun's rays and a larger mirror, "the temperature would increase even more drastically and at a faster rate" and "would easily cause combustion."

The powerful weapon wouldn't work on cloudy days, Sener's paper points out, and even a moving ship might diminish its impact.

But in an interview with CNN, Sener calls Archimedes' death ray "a neat idea".
United States

How $138B in US Student Loans Were Cancelled - Roughly One-Third of Planned Amount (cnn.com) 162

Roughly $138 billion in U.S. student loan debt has now been cancelled, reports CNN. "That's about one-third of the $430 billion that would've been canceled under the president's one-time forgiveness plan, which was struck down by the Supreme Court last year."

It's 9% of all outstanding federal student loan debt, according to the article, "wiping out debts for about 3.9 million borrowers — by using a number of existing programs that aim to offer debt relief for certain groups of struggling borrowers..." What President Biden has been doing — before and after the Supreme Court ruling — is using existing student loan forgiveness programs to deliver relief to certain groups of borrowers, like public-sector workers (through the Public Service Loan Forgiveness program) and borrowers who were defrauded by their college (through the borrower defense to repayment program). His administration also made discharges for borrowers who are totally and permanently disabled. None of these programs expire, meaning they will help qualifying borrowers now and in the future. In some cases, Biden's administration has expanded the reach of these programs, making more borrowers eligible.

And in other cases, it has made an effort to correct past administrative errors made to borrowers' student loan accounts by conducting a one-time recount of borrowers' past payments. This effort helps make sure people receive the loan forgiveness they may already qualify for by having made at least 20 years of payments in an income-driven plan, which calculates monthly payment amounts based on a borrower's income and family size, rather than the amount owed. The recount is expected to be completed by July...

Last year, the administration created a new income-driven repayment plan. Known as SAVE, the new plan offers the most generous terms for low-income borrowers. Those who originally borrowed $12,000 or less will see their remaining debt canceled after making payments for at least 10 years... [The administration] is working on implementing another path toward a broad student loan forgiveness program, this time relying on a different legal authority in hopes that this attempt holds up in court. This proposal is currently making its way through a lengthy rulemaking process and has yet to be finalized.

Earth

Earth Has Its Warmest February Ever - the 9th Record-Setting Month in a Row (axios.com) 91

An anonymous reader shared this report from the Washington Post: The Earth just observed its warmest February, setting a monthly record for the ninth time in a row, the European Union's Copernicus Climate Change Service announced Wednesday.

The unrelenting and exceptional global warmth — fueled by a combination of human-caused warming and the El Niño climate pattern — has spanned both land and ocean areas since June. It has scientists worried about the planet crossing a critical climate threshold and prospects for an active Atlantic hurricane season. The month's average global air temperature of 13.5 degrees Celsius (56.3 degrees Fahrenheit) was 0.12 degrees (0.22 degrees Fahrenheit) warmer than the previous warmest February in 2016.

The warmth of the last 12-month period is unprecedented in modern records, coming in at 1.56 degrees (2.8 degrees Fahrenheit) warmer than preindustrial levels... Scientists fear that tipping points, such as those that could lead to catastrophic sea level rises or the collapse of critical ocean circulations, will become more likely to be reached if the Earth's temperature remains near or above that threshold for multiple years.

Axios adds: This is significant, since these 12 months exceeded the Paris Agreement's 1.5-degree target for a full year. However, the pact is aimed at averting multiple decades above that level, meaning the target hasn't yet been officially breached. Europe was especially warm compared to average during February, along with central and northwest North America, much of South America, Africa and western Australia, Copernicus found.
The Washington Post notes that in the United States, "more than 200 locations in the Midwest and Northeast set records for winter warmth."

They also quote a weather historian who posted on social media that "We are witnessing something extraordinary and unprecedented. Several thousands of records pulverized all over the world in a matter of hours, with margins never seen before."
News

United Plane Veers Off Runway in Third Boeing Incident This Week (bnnbloomberg.ca) 132

A United Airlines Holdings aircraft ran off the taxiway into a grassy area after landing at Houston Friday, the third incident this week involving the airline's Boeing planes. From a report: United Flight 2477, with 160 passengers and six crew, had just landed at George Bush Intercontinental Airport about 8 a.m. local time Friday when it veered into the grass on a turn. No one was injured, and passengers left the plane on a set of stairs before being bused to the terminal, the airline said.

The incident follows the mid-air loss of a tire from a United Boeing 777-200 Thursday, just after the plane took off from San Francisco on a flight to Osaka, Japan, and an engine fire on a United flight from Houston to Fort Myers, Florida, earlier this week. The plane in the Houston-to-Florida flight had to make an emergency landing after one of its engines burst into flames 10 minutes after takeoff. The 21-year-old aircraft was also a 737 -- but an earlier version than the Max, according to FlightRadar24.

United States

Pentagon Review Finds No Evidence of Alien Cover-Up 106

An anonymous reader shares a report: In the 1960s, secret test flights of advanced government spy planes generated U.F.O. sightings. More recently, government and commercial drones, new kinds of satellites and errant weather balloons have led to a renaissance in unusual observations. But, according to a new report, none of these sightings were of alien spacecraft. The new congressionally mandated Pentagon report found no evidence that the government was covering up knowledge of extraterrestrial technology and said there was no evidence that any U.F.O. sightings represented alien visitation to Earth.

The 63-page document is the most sweeping rebuttal the Pentagon has issued in recent years to counter claims that it has information on extraterrestrial visits or technology. But amid widespread distrust of the government, the report is unlikely to calm a growing obsession with aliens. Maj. Gen. Patrick Ryder, a Defense Department spokesman, said the Pentagon approached the report with an open mind and no preconceived notions, but simply found no evidence to back up claims of secret programs, hidden alien technology or anything else extraterrestrial.
The new report suggests that the public's belief that the government is hiding what it knows will probably continue. The report adds: Nevertheless the public is unlikely to be swayed. Many people dismiss the government's claims that nothing interesting is going on in Pentagon videos that appear to show strange objects, citing accounts by Navy pilots that they observed objects whose movements cannot be easily explained. The new report notes that in the past, particularly in the 1950s, there was interest in U.F.O.s, but today the attention on unexplained sightings is greater than ever before. Politico adds: The Pentagon has disclosed that the government once considered a program to recover and reverse-engineer any captured alien spacecraft, an effort that never came to fruition but fueled conspiracy theories about a cover-up.
AI

President Biden Calls for Ban on AI Voice Impersonations (variety.com) 145

President Biden included a nod to a rising issue in the entertainment and tech industries during his State of the Union address Thursday evening, calling for a ban on AI voice impersonations. From a report: "Here at home, I have signed over 400 bipartisan bills. There's more to pass my unity agenda," President Biden said, beginning to list off a series of different proposals that he hopes to address if elected to a second term. "Strengthen penalties on fentanyl trafficking, pass bipartisan privacy legislation to protect our children online, harness the promise of AI to protect us from peril, ban AI voice impersonations and more."

The president did not elaborate on the types of guardrails or penalties that he would plan to institute around the rising technology, or if it would extend to the entertainment industry. AI was a peak concern for SAG-AFTRA during the actors union's negotiations with and strike against the major studios last year.

China

China Readies $27 Billion Chip Fund To Counter Growing US Curbs (bloomberg.com) 13

China is in the process of raising more than $27 billion for its largest chip fund to date, accelerating the development of cutting-edge technologies to counter a US campaign to thwart its rise. From a report: The National Integrated Circuit Industry Investment Fund is amassing a pool of capital from local governments and state enterprises for its third vehicle that should exceed the 200 billion yuan of its second fund, according to people familiar with the matter. Known as the Big Fund, the state-backed firm is expanding its remit just as the US prepares to sharply escalate technology curbs designed to curtail Chinese chip and artificial intelligence progress.

The establishment of a much larger third fund -- directly overseen by China's powerful tech ministry -- signals a resurgent effort to harness the world's largest semiconductor market after years of mixed success with central stewardship. Huawei and its partner Semiconductor Manufacturing International Corp. still had to rely on US-origin technology to build an advanced processor last year.

News

10 Years On, Is the World Any Closer To Finding MH370? (cnn.com) 90

An anonymous reader shares a report: For the past 10 years it has remained one of the modern era's greatest mysteries. A commercial airliner with a strong safety record carrying 239 people vanishing from the map, spawning a wide variety of competing theories, books and documentaries and leaving the families of those left behind asking themselves every March 8 -- what happened to those aboard Malaysia Airlines flight 370?

In an era when black boxes have been successfully hauled up from the very depths of the ocean and whole chunks of a downed airliner painstakingly pieced back together to determine what caused a catastrophe, the fate of MH370 remains infuriatingly elusive. It is a plane crash without a plane. A disaster without conclusive proof of what happened to its victims. A story that anyone who embarks on a commercial flight can instantly relate to but one that, for now at least, doesn't have a closing chapter.

[...] This week, many loved ones of those missing returned to Malaysia to urge local authorities to relaunch a search ahead of Friday's anniversary. [...] Aviation experts tell CNN that improved detection technology will likely bring families closer to the missing plane than they ever have been, if a search were to be relaunched. But that will not be cheap. Hundreds of millions of dollars were spent scouring more than 710,000 square kilometers of the Indian Ocean until 2018, but nothing transpired that moved our understanding on from that already available since the very early days.

Biotech

Mexico Argues Glyphosate In GM Corn Is Unsafe For Human Consumption (reuters.com) 106

Mexico is waiting for the United States to provide evidence that shows imported genetically modified corn is safe for human consumption. "In a written submission to a panel of the United States-Mexico-Canada Agreement, Mexico, the top buyer of U.S. corn, argued that science proves GM corn and the herbicide glyphosate are harmful to human health and its native varieties, and that its decree to ban GM corn for human consumption is within its right," reports Reuters. From the report: [Deputy Agriculture Secretary Victor Suarez] said the onus is now on the United States to show GM corn is not harming Mexico's population, which consumes a higher amount of corn than many countries through daily diet staples like nixtamalized dough and tortilla. The United States "argues that the decisions in Mexico are not based on science and that their decisions are," Suarez told Reuters in an interview. "But we still haven't seen the science of the United States or the companies. We are looking forward to that study with great pleasure."

A spokesman for the U.S. Department of Agriculture said Mexico's approach to biotechnology runs counter to "decades' worth of evidence demonstrating its safety." A senior official for the U.S. Trade Representative said, "Scientific authorities, including in Mexico, have consistently found biotech products like corn to be safe over a period of decades." [...] Mexico's written response cited studies it said showed links between GM corn consumption and glyphosate exposure to liver inflammation in people and impacts to immune response in animals, saying it considers the risk to human health "extremely serious."

The United States in August requested a dispute settlement panel under the USMCA over Mexico's decree to ban GM corn for human consumption, specifically in the use of making flour for tortillas. The decree allows the use of GM yellow corn in animal feed, which accounts for the majority of Mexico's nearly $5.9 billion worth of U.S. corn imports annually. Washington argues Mexico's decree banning imports of GM corn used for tortillas is not based on science and violates its commitments under the USMCA, which has been in place since 2020. "There is no impact on trade," Suarez said of Mexico's decree. "The value and volume of exports of GM corn to Mexico has increased."

Mexico's decree also calls for the gradual substitution of GM corn, a point of contention highlighted by U.S. officials. In its written response, Mexico argued that no specific time frame has been established and therefore it has had no trade impact. "It is a strategic goal, like the United States would like to have energy sovereignty and energy self-sufficiency," Suarez said. The United States is expected to issue a rebuttal to Mexico's response.

Medicine

Microscopic Plastics Could Raise Risk of Stroke and Heart Attack, Study Says 57

An anonymous reader quotes a report from The Guardian: Doctors have warned of potentially life-threatening effects from plastic pollution after finding a substantially raised risk of stroke, heart attack and earlier death in people whose blood vessels were contaminated with microscopic plastics. Researchers in Naples examined fatty plaques removed from the blood vessels of patients with arterial disease and found that more than half had deposits contaminated with tiny particles of polyethylene or polyvinyl chloride (PVC). Those whose plaques contained microplastics or nanoplastics were nearly five times more likely to suffer a stroke, heart attack or death from any cause over the following 34 months, compared with those whose plaques were free from plastic contamination. The findings do not prove that plastic particles drive strokes and heart attacks -- people who are more exposed to the pollution may be at greater risk for other reasons -- but research on animals and human cells suggests the particles may be to blame. [...]

Writing in the New England Journal of Medicine, the doctors describe how they analyzed fatty plaques removed from 304 patients with atherosclerosis affecting the carotid arteries. The carotid arteries are the main blood vessels that supply blood to the neck, face and brain. The disease causes a build-up of plaque in the arteries, which substantially raises the risk of stroke. The plaques can be removed by a procedure called carotid endarterectomy. Lab tests on the extracted plaques revealed polyethylene in 150 patients and polyvinyl chloride in 31, alongside signs of inflammation. On examination under an electron microscope, the researchers spotted jagged foreign particles in the fatty deposits, most less than a thousandth of a millimeter across. The doctors followed 257 of the patients for an average of 34 months after they had carotid plaques removed. Those who had plastic particles in their plaques were 4.5 times more likely to have a stroke or heart attack, or to die from any cause, than those whose plaques were free from plastic pollution.
"People must become aware of the risks we are taking with our lifestyle," said Dr Raffaele Marfella, first author on the study at the University of Campania Luigi Vanvitelli in Naples. "I hope the alarm message from our study will raise the consciousness of citizens, especially governments, to finally become aware of the importance of the health of our planet. To put it in a slogan that can unite the need for health for humans and the planet, plastic-free is healthy for the heart and the Earth."
Open Source

Fedora Workstation 41 To No Longer Install GNOME X.Org Session By Default (phoronix.com) 75

Michael Larabel writes via Phoronix: Fedora Workstation has long defaulted to using GNOME's Wayland session by default, but it has continued to install the GNOME X.Org session for fallback purposes or those opting to use it instead. But for the Fedora Workstation 41 release later in the year, there is a newly-approved plan to no longer have that GNOME X.Org session installed by default. Recently there was a Fedora Workstation ticket opened to no longer install the GNOME X.Org session by default. This is just about whether the X.Org session is pre-installed but would continue to live in the repository for those wanting to explicitly install it.

The Fedora Workstation working group decided to go ahead with this change for the Fedora 41 cycle, not the upcoming Fedora 40 release. So pending any obstacles by FESCo, which is unlikely. Fedora Workstation 41 will not be installing the GNOME X.Org session by default. Long live Wayland.

Power

Is America Running Out of Electrical Power? (theweek.com) 267

An anonymous reader quotes a report from The Week Magazine: The advancement of new technologies appears to have given rise to a new problem across the United States: a crippling power shortage on the horizon. The advent of these technologies, such as eco-friendly factories and data centers, has renewed concerns that America could run out of electrical power. These worries also come at a time when the United States' aging power grid is in desperate need of repair. Heavily publicized incidents such as the 2021 Texas power outage, which was partially blamed on crypto-farming, exposed how vulnerable the nation's power supply is, especially during emergencies. There have also been warnings from tech moguls such as Elon Musk, who has stated that the United States is primed to run out of electricity and transformers for artificial intelligence in 2025. But the push to extend the life of the nation's power grid, while also maintaining eco-friendly sustainability, begs the question: Is the United States really at risk of going dark?

The emergence of new technologies means demand is soaring for power across the country; in Georgia, "demand for industrial power is surging to record highs, with the projection of electricity use for the next decade now 17 times what it was only recently," Evan Halper said for The Washington Post. Northern Virginia "needs the equivalent of several large nuclear power plants to serve all [its] new data centers," Halper said, while Texas faces a similar problem. This demand is resulting in a "scramble to try to squeeze more juice out of an aging power grid." At the same time, companies are "pushing commercial customers to go to extraordinary lengths to lock down energy sources, such as building their own power plants," Halper said. Much of this relates to the "rapid innovation in artificial intelligence, which is driving the construction of large warehouses of computing infrastructure," Halper said. This infrastructure requires significantly more power than traditional data centers, with the aforementioned crypto farms also sucking up massive amounts of power.

Climate change is also hurting sustainability efforts. A recent report from the North American Electric Reliability Corporation estimated that more than 300 million people in the U.S. and Canada could face power shortages in 2024. It also found that electricity demand is rising faster now than at any time in the past five years. This is partially because the "push for the electrification of heating and transportation systems -- including electric cars -- is also creating new winter peaks in electricity demand," Jeremy Hsu said for New Scientist. One of the main issues with these sustainability efforts is the push to move away from fossil fuels toward renewable power. Natural gas is often seen as a bridge between fossils and renewables, but this has also had unintended consequences for the power grid. The system delivering natural gas "doesn't have to meet the same reliability standards as the electric grid, and in many cases, there's no real way to guarantee that fuel is available for the gas plants in the winter," Thomas Rutigliano of the Natural Resources Defense Council said to New Scientist. As a result, the "North American electricity supply has become practically inseparable from the natural gas supply chain," John Moura of the North American Electric Reliability Corporation said to New Scientist. As such, a "reliable electricity supply that lowers the risk of power outages depends on implementing reliability standards for the natural gas industry moving forward," but this may be easier said than done.

Crime

US Lost Record $12.5 Billion To Online Crime In 2023, Says FBI (bleepingcomputer.com) 33

An anonymous reader quotes a report from BleepingComputer: FBI's Internet Crime Complaint Center (IC3) has released its 2023 Internet Crime Report (PDF), which recorded a 22% increase in reported losses compared to 2022, amounting to a record of $12.5 billion. The number of relevant complaints submitted to the FBI in 2023 reached 880,000, 10% higher than the previous year, with the age group topping the report being people over 60, which shows how vulnerable older adults are to cybercrime. Both figures continue a worrying trend seen by the agency since 2019, where complaints and losses rise yearly. For 2023, the types of crimes that increased were tech support scams and extortion, whereas phishing, personal data breach, and non-payment/non-delivery scams slightly waned.
Open Source

Feds To Offer New Support To Open-Source Developers (axios.com) 12

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) will start providing more hands-on support to open-source software developers as they work to better secure their projects, the agency said. From a report: CISA hosted a two-day, invite-only summit this week with leaders in the open-source software community and other federal officials. During the private event, the agency also ran what's likely the first tabletop exercise to assess how well the government and the open-source community would respond to a cyberattack targeting one of their projects.

During the summit, CISA and a handful of package repositories unveiled new initiatives to help secure open-source projects. CISA is working on a new communication channel where open-source software developers can share threat intelligence and ask the agency for assistance during an incident. The Rust Foundation is developing new public key infrastructure for its repository, which will help ensure that the code developers are uploading isn't malicious and is coming from legitimate users.

npm, which manages the JavaScript programming language, is requiring project maintainers to enroll in multi-factor authentication and is rolling out a tool to generate "software bills of materials," which provide a recipe list of what code and other elements are in a project. Additional repositories -- including the Python Software Foundation, Packagist, Composer and Maven Central -- are pursuing similar projects and also also rolling out tools to help detect and report malware and other security vulnerabilities.

United States

SEC Approves Rule Requiring Some Companies To Report Greenhouse Gas Emissions (apnews.com) 27

The U.S. Securities and Exchange Commission on Wednesday approved a rule that will require some public companies to report their greenhouse gas emissions and climate risks, after last-minute revisions that weakened the directive in the face of strong pushback from companies. From a report: The rule was one of the most anticipated in recent years from the nation's top financial regulator, drawing more than 24,000 comments from companies, auditors, legislators and trade groups over a two-year process. It brings the U.S. closer to the European Union and California, which moved ahead earlier with corporate climate disclosure rules.

The SEC rule passed 3-2, with three Democratic commissioners supporting it and two Republicans opposed. Since the SEC proposed a rule two years ago, experts had said it was likely to face litigation almost immediately. SEC Chairman Gary Gensler, one of the Democrats, acknowledged that was a factor the agency considered as it worked toward a final rule. "We've seriously considered what people have said about our legal authorities," Gensler said on Wednesday.

Education

Teachers Are Embracing ChatGPT-Powered Grading 121

Schools are widely adopting a new tool called Writable that uses ChatGPT to help grade student writing assignments. Axios reports: Writable, which is billed as a time-saving tool for teachers, was purchased last month by education giant Houghton Mifflin Harcourt, whose materials are used in 90% of K-12 schools. Teachers use it to run students' essays through ChatGPT, then evaluate the AI-generated feedback and return it to the students.

A teacher gives the class a writing assignment -- say, "What I did over my summer vacation" -- and the students send in their work electronically. The teacher submits the essays to Writable, which in turn runs them through ChatGPT. ChatGPT offers comments and observations to the teacher, who is supposed to review and tweak them before sending the feedback to the students. Writable "tokenizes" students' information so that no personally identifying details are submitted to the AI program.
Businesses

Rising Temperatures and Heat Shocks Prompt Job Relocations, Study Finds (techtarget.com) 55

dcblogs writes: A recent study in the National Bureau of Economic Research has found that companies are quietly adapting to rising temperatures by shifting operations from hotter to cooler locations. The researchers analyzed data from 50,000 companies between 2009 and 2020. "To illustrate the economic impact, the researchers found that when a company with equal employment across two counties experiences a heat shock in one county, there is a subsequent 0.7% increase in employment growth in the unaffected county over a three-year horizon," reports TechTarget. "The finding is significant, given that the mean employment growth for the sample of businesses in the study is 2.4%."

Heat shocks are characterized by their severe impact on health, energy grids, and increased fire risks, influencing companies with multiple locations to reconsider their geographical distribution of operations. Despite this trend, states like Arizona and Nevada, which have some of the highest heat-related death tolls, continue to experience rapid business expansion. Experts believe that factors such as labor pool, taxes, and regulations still outweigh environmental climate risks when it comes to business site selection. But heat associated deaths are on the rise. In the Phoenix area alone, it experienced 425 heat related deaths in 2022 and a similar number in 2023 -- record highs for this region.

The study suggests that the implications of climate change on business operations are becoming more apparent. Companies are beginning to evaluate climate risks as part of their regular risk assessment process.

Earth

Satellite To 'Name and Shame' Worst Oil and Gas Methane Polluters (theguardian.com) 53

A washing-machine-sized satellite is to "name and shame" the worst methane polluters in the oil and gas industry. From a report: MethaneSat will provide the first near-comprehensive global view of leaks of the potent greenhouse gas from the oil and gas sector, and all of the data will be made public. It will provide high-resolution data over wider areas than existing satellites. Methane, also called natural gas, is responsible for 30% of the global heating driving the climate crisis. Leaks from the fossil fuel industry are a major source of human-caused emissions and stemming these is the fastest single way to curb temperature rises.

MethaneSat was developed by the Environmental Defense Fund, a US NGO, in partnership with the New Zealand Space Agency and cost $88m to build and launch. Earlier EDF measurements from planes show methane emissions were 60% higher than calculated estimates published by US authorities and elsewhere. More than 150 countries have signed a global methane pledge to cut their emissions of the gas by 30% from 2020 levels by 2030. Some oil and gas companies have made similar pledges, and new regulations to limit methane leaks are being worked on in the US, EU, Japan and South Korea.

The EDF's senior vice-president, Mark Brownstein, said: "MethaneSat is a tool for accountability . I'm sure many people think this could be used to name and shame companies who are poor emissions performers, and that's true. But [it] can [also] help document progress that leading companies are making in reducing their emissions." The oil and gas industry knows how to stop leaks and the cost of doing so is usually very modest, said Steven Hamburg, the EDF's chief scientist and MethaneSat project leader: "Some call it low hanging fruit. I like to call it fruit lying on the ground."

United States

How Much Energy Will New Semiconductor Factories Burn Through in the US? (theverge.com) 41

A new report warns that a boom in computer chip manufacturing in the US could fuel demand for dirty energy, despite companies' environmental claims. The solution for manufacturers, surprisingly, might be to act more like other big tech companies chasing climate goals. From a report: New semiconductor factories being built in the US by four of the biggest manufacturers -- Intel, TSMC, Samsung, and Micron -- could use more than twice as much electricity as the city of Seattle once they're operational. These companies claim to run on renewable energy, but according to an analysis by nonprofit Stand.earth, that's not entirely true. Semiconductors happen to make up a big chunk of a device's carbon footprint. And unless companies turn to clean energy, they could wind up driving up greenhouse gas emissions as domestic chip manufacturing makes a comeback.

The CHIPS and Science Act, which passed in 2022, set aside $52.7 billion in funding for domestic chip manufacturing. Now, the four companies scrutinized in the report have plans to build megafactories in Arizona, Ohio, Oregon, Idaho, Texas, and New York. Each of those megafactories alone could use as much electricity as a medium-sized town, according to the report. Cumulatively, nine facilities could eventually add 2.1 gigawatts in new electricity demand. "We're not slowing down on any of our sustainability commitments, even with our recently announced investments," Intel said in an email.

Cellphones

Screen Time Robs Average Toddler of Hearing 1,000 Words Spoken By Adult a Day, Study Finds (theguardian.com) 86

An anonymous reader quotes a report from The Guardian: The average toddler is missing out on hearing more than 1,000 words spoken by an adult each day due to screen time, setting back their language skills, a first-of-its kind study has found. The research, published on Tuesday in the Journal of the American Medical Association (Jama) Pediatrics, tracked 220 Australian families over two years to measure the relationship between family screen use and children's language environment. Families recorded all the audio around their child using advanced speech recognition technology over a 16-hour period on an average day at home. They repeated this process every six months between the ages of 12 and 36 months. The lead researcher, Dr Mary Brushe from the Telethon Kids Institute, said: "The technology we use is essentially like a Fitbit, but instead of counting the number of steps, this device counts the number of words spoken by, to and around the child." The device also picked up electronic noise, which the researchers analyzed to calculate screen time.

The researchers found young children's exposure to screens including TVs and phones was interfering with their language opportunities, with the association most pronounced at three years of age. For every extra minute of screen time, the three-year-olds in the study were hearing seven fewer words, speaking five fewer words themselves and engaging in one less conversation. The study found the average three-year-old in the study was exposed to two hours and 52 minutes of screen time a day. Researchers estimated this led to those children being exposed to 1,139 fewer adult words, 843 fewer child words and 194 fewer conversations. Because the study couldn't capture parents' silent phone use, including reading emails, texting or quietly scrolling through websites or social media, Brushe said they might have underestimated how much screen usage is affecting children.

A language-rich home environment was critical in supporting infants and toddlers' language development, Brushe said. While some educational children's shows were designed to help children's language skills, very young kids in the age group of the study could struggle to translate television shows into their own life, she said. This study did not differentiate between whether children were watching high- or low-quality screen content.

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