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US environmental agency fast tracking new PFAS approvals for semiconductors

News Feed
Thursday, December 19, 2024

The Environmental Protection Agency is quietly fast tracking approval of new PFAS “forever chemicals” for use by the semiconductor industry at the same time the agency is publicly touting increased scrutiny of new PFAS and other chemicals.As US semiconductor production ramps up, the hastened reviews could sharply increase pollution containing little-studied PFAS that are likely toxic, accumulative in the environment and contribute to climate change.Despite the risks, the EPA is “bending over backwards” for the semiconductor industry, said Mike Belliveau, the founder of the Bend The Curve non-profit who has lobbied on toxic chemical legislation.“We’re going to see more and more [PFAS pollution],” he said. “No one is happy that PFAS is in their drinking water or raining down from the air, and EPA’s permitting runs counter to rising scientific and public concern … so tension is mounting.”PFAS are a class of about 15,000 chemicals often used to make products resistant to water, stains and heat. They are called “forever chemicals” because they do not naturally break down, and are linked to cancer, liver problems, thyroid issues, birth defects, kidney disease, decreased immunity and other serious health problems.Semiconductors are essential to electronics used in defense, medical devices, smart phones, clean energy and more, and the Biden administration has spurred the industry’s onshoring with billions in incentives. But the industry is a prolific polluter and a major source of unregulated and unmonitored PFAS, creating tension with Biden’s sweeping plan to rein in PFAS pollution.The controversy represents a confluence of what environmental advocates have said are major deficiencies in PFAS regulation. It’s generating debate over the definition of PFAS, political meddling in EPA decisions, the rapid accumulation of little-studied PFAS and regulators’ black box decision making around chemical safety and approvals.The EPA in early December announced it would strengthen its review of new chemicals as part of the 2016 rewrite of Toxic Substances Control Act (TSCA), which are the laws governing the nation’s use of toxic substances.Previously, industry could begin selling a chemical if the EPA didn’t review it within 90 days, resulting in thousands of substances being sold with virtually no review.The law also included a “low volume exemption” that allows chemicals to be sent to market in fewer than 30 days with little scrutiny if they’re used in small amounts and do not put workers’ health at risk – over 600 PFAS were given low volume exemptions in recent decades, including those that were “lethal if inhaled” and “corrosive to the skin”.The 2016 TSCA rewrite eliminated those problems, but the first Trump EPA never implemented the law. The Biden EPA published it in early December, stating the agency “should encourage innovation, while also making sure that new chemistries can be used safely before they are allowed to enter commerce”.“Today, we’ve modernized our chemical reviews and continued to protect people from unsafe new PFAS,” said Michal Freedhoff, an EPA chemical safety administrator.But 40 pages into the rule are two paragraphs that advocates say contradicts the rule’s intent. It points to PFAS’s “critical role” in semiconductor production, and states that the agency “prioritizes” those PFAS and “now reviews these new chemicals in a third of the time compared to other sectors” – or as little as 90 days.The EPA further claims it put in place a “framework” to ensure the chemicals are safe, but the details are unclear. It also justifies the decision in part by claiming that semiconductor PFAS are used in a “closed loop”, meaning they are contained in the facility, do not put workers at risk and are properly disposed of.But advocates say that is untrue. While industry uses robots in many chip making processes, the facilities pump an enormous volume of PFAS waste into water or air. Some capture waste and send it to incinerators that are technologically incapable of fully destroying PFAS, and instead send toxic waste into the air around those facilities.The Biden administration has acknowledged the PFAS waste problem, but still claims the process is “closed loop”.“There is no closed system for PFAS,” Belliveau said.It’s also unclear exactly how the EPA is weighing chemicals’ risks. The agency generally relies on industry science, and in other situations in which it has fast tracked approval of new chemicals, it uses standardized formulas to assess health and environmental risks that seem “designed to get them to ‘yes’,” said Tosh Sagar, an attorney with Earthjustice, which litigates on PFAS issues.If there is health and safety data on the new chemicals, it was developed by industry and largely is legally hidden from the public under confidential business information claims.“It’s innocent until proven guilty and that’s a fundamental problem,” said Lenny Siegel, with Chips Communities United, a group working with industry and the administration to improve environmental safeguards. “If there are safety reports, then show me – the chemicals are going to be in our environment and blood for a long, long time.”While the industry has tried to evade environmental oversight, it is looking for alternatives to PFAS, but development is slow and difficult. Producing semiconductors is a highly complex process and PFAS are essential ingredients used in as many as 1,000 steps at the nanometric level.Recent testing data showed 78,000 parts per trillion (ppt) of PFAS in wastewater from one facility – the EPA legal limit for several common PFAS compounds is 4 ppt.The process also demands the use of fluorinated gases, or PFAS gas, in a range of processes, and their toxicological risks remain largely unknown. But they often turn into TFA, a toxic greenhouse gas that can stay in the atmosphere for 1,000 years. TFA is often found at higher levels than any other PFAS compound in the air, water, and human blood, but independent researchers are only beginning to study it.Meanwhile, the EPA has altered the definition of PFAS in the rule to exclude many gases that are considered PFAS by most public health agencies worldwide, Sagar said. The exclusion has been a priority for the chemical industry and military.Chip makers and the Biden administration have argued that the benefits of onshoring the semiconductor industry outweighs the risks. That may be a point of debate, Siegel said, but he added: “That’s not what the EPA is saying – they’re saying they’re protecting us.“The EPA is not doing their job,” Siegel added.

Hastened reviews of compounds as industry ramps up could increase pollution from likely toxic chemicalsThe Environmental Protection Agency is quietly fast tracking approval of new PFAS “forever chemicals” for use by the semiconductor industry at the same time the agency is publicly touting increased scrutiny of new PFAS and other chemicals.As US semiconductor production ramps up, the hastened reviews could sharply increase pollution containing little-studied PFAS that are likely toxic, accumulative in the environment and contribute to climate change. Continue reading...

The Environmental Protection Agency is quietly fast tracking approval of new PFAS “forever chemicals” for use by the semiconductor industry at the same time the agency is publicly touting increased scrutiny of new PFAS and other chemicals.

As US semiconductor production ramps up, the hastened reviews could sharply increase pollution containing little-studied PFAS that are likely toxic, accumulative in the environment and contribute to climate change.

Despite the risks, the EPA is “bending over backwards” for the semiconductor industry, said Mike Belliveau, the founder of the Bend The Curve non-profit who has lobbied on toxic chemical legislation.

“We’re going to see more and more [PFAS pollution],” he said. “No one is happy that PFAS is in their drinking water or raining down from the air, and EPA’s permitting runs counter to rising scientific and public concern … so tension is mounting.”

PFAS are a class of about 15,000 chemicals often used to make products resistant to water, stains and heat. They are called “forever chemicals” because they do not naturally break down, and are linked to cancer, liver problems, thyroid issues, birth defects, kidney disease, decreased immunity and other serious health problems.

Semiconductors are essential to electronics used in defense, medical devices, smart phones, clean energy and more, and the Biden administration has spurred the industry’s onshoring with billions in incentives. But the industry is a prolific polluter and a major source of unregulated and unmonitored PFAS, creating tension with Biden’s sweeping plan to rein in PFAS pollution.

The controversy represents a confluence of what environmental advocates have said are major deficiencies in PFAS regulation. It’s generating debate over the definition of PFAS, political meddling in EPA decisions, the rapid accumulation of little-studied PFAS and regulators’ black box decision making around chemical safety and approvals.

The EPA in early December announced it would strengthen its review of new chemicals as part of the 2016 rewrite of Toxic Substances Control Act (TSCA), which are the laws governing the nation’s use of toxic substances.

Previously, industry could begin selling a chemical if the EPA didn’t review it within 90 days, resulting in thousands of substances being sold with virtually no review.

The law also included a “low volume exemption” that allows chemicals to be sent to market in fewer than 30 days with little scrutiny if they’re used in small amounts and do not put workers’ health at risk – over 600 PFAS were given low volume exemptions in recent decades, including those that were “lethal if inhaled” and “corrosive to the skin”.

The 2016 TSCA rewrite eliminated those problems, but the first Trump EPA never implemented the law. The Biden EPA published it in early December, stating the agency “should encourage innovation, while also making sure that new chemistries can be used safely before they are allowed to enter commerce”.

“Today, we’ve modernized our chemical reviews and continued to protect people from unsafe new PFAS,” said Michal Freedhoff, an EPA chemical safety administrator.

But 40 pages into the rule are two paragraphs that advocates say contradicts the rule’s intent. It points to PFAS’s “critical role” in semiconductor production, and states that the agency “prioritizes” those PFAS and “now reviews these new chemicals in a third of the time compared to other sectors” – or as little as 90 days.

The EPA further claims it put in place a “framework” to ensure the chemicals are safe, but the details are unclear. It also justifies the decision in part by claiming that semiconductor PFAS are used in a “closed loop”, meaning they are contained in the facility, do not put workers at risk and are properly disposed of.

But advocates say that is untrue. While industry uses robots in many chip making processes, the facilities pump an enormous volume of PFAS waste into water or air. Some capture waste and send it to incinerators that are technologically incapable of fully destroying PFAS, and instead send toxic waste into the air around those facilities.

The Biden administration has acknowledged the PFAS waste problem, but still claims the process is “closed loop”.

“There is no closed system for PFAS,” Belliveau said.

It’s also unclear exactly how the EPA is weighing chemicals’ risks. The agency generally relies on industry science, and in other situations in which it has fast tracked approval of new chemicals, it uses standardized formulas to assess health and environmental risks that seem “designed to get them to ‘yes’,” said Tosh Sagar, an attorney with Earthjustice, which litigates on PFAS issues.

If there is health and safety data on the new chemicals, it was developed by industry and largely is legally hidden from the public under confidential business information claims.

“It’s innocent until proven guilty and that’s a fundamental problem,” said Lenny Siegel, with Chips Communities United, a group working with industry and the administration to improve environmental safeguards. “If there are safety reports, then show me – the chemicals are going to be in our environment and blood for a long, long time.”

While the industry has tried to evade environmental oversight, it is looking for alternatives to PFAS, but development is slow and difficult. Producing semiconductors is a highly complex process and PFAS are essential ingredients used in as many as 1,000 steps at the nanometric level.

Recent testing data showed 78,000 parts per trillion (ppt) of PFAS in wastewater from one facility – the EPA legal limit for several common PFAS compounds is 4 ppt.

The process also demands the use of fluorinated gases, or PFAS gas, in a range of processes, and their toxicological risks remain largely unknown. But they often turn into TFA, a toxic greenhouse gas that can stay in the atmosphere for 1,000 years. TFA is often found at higher levels than any other PFAS compound in the air, water, and human blood, but independent researchers are only beginning to study it.

Meanwhile, the EPA has altered the definition of PFAS in the rule to exclude many gases that are considered PFAS by most public health agencies worldwide, Sagar said. The exclusion has been a priority for the chemical industry and military.

Chip makers and the Biden administration have argued that the benefits of onshoring the semiconductor industry outweighs the risks. That may be a point of debate, Siegel said, but he added: “That’s not what the EPA is saying – they’re saying they’re protecting us.

“The EPA is not doing their job,” Siegel added.

Read the full story here.
Photos courtesy of

Like Many Holiday Traditions, Lighting Candles and Fireplaces Is Best Done in Moderation

The warm scents of gingerbread and pine are holiday favorites, but experts warn they can affect indoor air quality

The warm spices in gingerbread, the woodsy aroma of pine and fir trees, and the fruity tang of mulled wine are smells synonymous with the holiday season. Many people enjoy lighting candles, incense and fireplaces in their homes to evoke the moods associated with these festive fragrances.Burning scented products may create a cozy ambiance, and in the case of fireplaces, provide light and heat, but some experts want people to consider how doing so contributes to the quality of the air indoors. All flames release chemicals that may cause allergy-like symptoms or contribute to long-term respiratory problems if they are inhaled in sufficient quantities.However, people don't have to stop sitting by the hearth or get rid of products like perfumed candles and essential oil diffusers, said Dr. Meredith McCormack, director of the pulmonary and critical care medicine division at John Hopkins University’s medical school. Instead, she recommends taking precautions to control the pollutants in their homes.“Clean air is fragrance free,” said McCormack, who has studied air quality and lung health for more than 20 years. “If having seasonal scents is part of your tradition or evokes feelings of nostalgia, maybe think about it in moderation.” What to know about indoor air quality People in the Northern Hemisphere tend to spend more time indoors during the end-of-year holidays, when temperatures are colder. Indoor air can be significantly more polluted than outdoor air because pollutants get trapped inside and concentrated without proper ventilation or filtration, according to the American Lung Association.For example, active fireplaces and gas appliances release tiny airborne particles that can get into the lungs and chemicals like nitrogen dioxide, a major component of smog, according to the U.S. Environmental Protection Agency. Cleaning products, air fresheners and candles also emit air pollutants at varying concentrations.The risk fragrances and other air pollutants may pose to respiratory health depends on the source, the length and intensity of a person’s exposure, and individual health, McCormack said.It is also important to note that some pollutants have no smell, so unscented products still can affect indoor air quality, experts say. Some people are more vulnerable Polluted air affects everyone but not equally. Children, older adults, minority populations and people of low socioeconomic status are more likely to be affected by poor air quality because of either physiological vulnerabilities or higher exposure, according to the environmental agency.Children are more susceptible to air pollution because of their lung size, which means they get a greater dose of exposure relative to their body size, McCormack said. Pollutants inside the home also post a greater hazard to people with heart or lung conditions, including asthma, she said.Signs of respiratory irritation include coughing, shortness of breath, headaches, a runny nose and sneezing. Experts advise stopping use of pollutant-releasing products or immediately ventilating rooms if symptoms occur.“The more risk factors you have, the more harmful air pollution or poor air quality indoors can be,” McCormack said. Practical precautions to take Ellen Wilkowe burns candles with scents like vanilla and cinnamon when she does yoga, writes or when she is showering at her home in New Jersey. Her teenage daughter, on the other hand, likes more seasonally scented candles like gingerbread.“The candle has a calming presence. They are also very symbolic and used in rituals and many religions,” she said.Wilkowe said she leans toward candles made with soy-based waxes instead of petroleum-based paraffin. Experts note that all lit candles give off air pollutants regardless of what they are made of.Buying products with fewer ingredients, opening windows if the temperatures allow, and using air purifiers with HEPA filters are ways to reduce exposure to any pollutants from indoor fireplaces, appliances and candle displays, McCormack said. She also recommends switching on kitchen exhaust fans before starting a gas-powered stovetop and using the back burners so the vent can more easily suck up pollutants.Setting polite boundaries with guests who smoke cigarettes or other tobacco products is also a good idea, she said.“Small improvements in air quality can have measurable health benefits," McCormack said. "Similarly to if we exercise and eat a little better, we can be healthier.”Rachael Lewis-Abbott, a member of the Indoor Air Quality Association, an organization for professionals who identify and address air quality problems, said people don't usually notice what they are breathing in until problems like gas leaks or mold develop.“It is out of sight, out of mind,” she said.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See – December 2025

This moss survived in space for 9 months

In an experiment on the outside of the International Space Station, a species of moss survived in space for 9 months. And it could have lasted much longer. The post This moss survived in space for 9 months first appeared on EarthSky.

Meet a spreading earthmoss known as Physcomitrella patens. It’s frequently used as a model organism for studies on plant evolution, development, and physiology. In this image, a reddish-brown sporophyte sits at the top center of a leafy gametophore. This capsule contains numerous spores inside. Scientists tested samples like these on the outside of the International Space Station (ISS) to see if they could tolerate the extreme airless environment. And they did. The moss survived in space for 9 months and could have lasted even longer. Image via Tomomichi Fujita/ EurekAlert! (CC BY-SA). Space is a deadly environment, with no air, extreme temperature swings and harsh radiation. Could any life survive there? Reasearchers in Japan tested a type of moss called spreading earthmoss on the exterior of the International Space Station. The moss survived for nine months, and the spores were still able to reproduce when brought back to Earth. Moss survived in space for 9 months Can life exist in space? Not simply on other planets or moons, but in the cold, dark, airless void of space itself? Most organisms would perish almost immediately, to be sure. But researchers in Japan recently experimented with moss, with surprising results. They said on November 20, 2025, that more than 80% of their moss spores survived nine months on the outside of the International Space Station. Not only that, but when brought back to Earth, they were still capable of reproducing. Nature, it seems, is even tougher than we thought! Amazingly, the results show that some primitive plants – not even just microorganisms – can survive long-term exposure to the extreme space environment. The researchers published their peer-reviewed findings in the journal iScience on November 20, 2025. A deadly environment for life Space is a horrible place for life. The lack of air, radiation and extreme cold make it pretty much unsurvivable for life as we know it. As lead author Tomomichi Fujita at Hokkaido University in Japan stated: Most living organisms, including humans, cannot survive even briefly in the vacuum of space. However, the moss spores retained their vitality after nine months of direct exposure. This provides striking evidence that the life that has evolved on Earth possesses, at the cellular level, intrinsic mechanisms to endure the conditions of space. This #moss survived 9 months directly exposed to the vacuum space and could still reproduce after returning to Earth. ? ? spkl.io/63322AdFrpTomomichi Fujita & colleagues@cp-iscience.bsky.social — Cell Press (@cellpress.bsky.social) 2025-11-24T16:00:02.992Z What about moss? Researchers wanted to see if any Earthly life could survive in space’s deadly environment for the long term. To find out, they decided to do some experiments with a type of moss called spreading earthmoss, or Physcomitrium patens. The researchers sent hundreds of sporophytes – encapsulated moss spores – to the International Space Station in March 2022, aboard the Cygnus NG-17 spacecraft. They attached the sporophyte samples to the outside of the ISS, where they were exposed to the vacuum of space for 283 days. By doing so, the samples were subjected to high levels of UV (ultraviolet) radiation and extreme swings of temperature. The samples later returned to Earth in January 2023. The researchers tested three parts of the moss. These were the protonemata, or juvenile moss; brood cells, or specialized stem cells that emerge under stress conditions; and the sporophytes. Fujita said: We anticipated that the combined stresses of space, including vacuum, cosmic radiation, extreme temperature fluctuations and microgravity, would cause far greater damage than any single stress alone. Astronauts placed the moss samples on the outside of the International Space Station for the 9-month-long experiment. Incredibly, more than 80% of the the encapsulated spores survived the trip to space and back to Earth. Image via NASA/ Roscosmos. The moss survived! So, how did the moss do? The results were mixed, but overall showed that the moss could survive in space. The radiation was the most difficult aspect of the space environment to withstand. The sporophytes were the most resilient. Incredibly, they were able to survive and germinate after being exposed to -196 degrees Celsius (-320 degrees Fahrenheit) for more than a week. At the other extreme, they also survived in 55° degrees C (131 degrees F) heat for a month. Some brood cells survived as well, but the encased spores were about 1,000 times more tolerant to the UV radiation. On the other hand, none of the juvenile moss survived the high UV levels or the extreme temperatures. Samples of moss spores that germinated after their 9-month exposure to space. Image via Dr. Chang-hyun Maeng/ Maika Kobayashi/ EurekAlert!. (CC BY-SA). How did the spores survive? So why did the encapsulated spores do so well? The researchers said the natural structure surrounding the spore itself helps to protect the spore. Essentially, it absorbs the UV radiation and surrounds the inner spore both physically and chemically to prevent damage. As it turns out, this might be associated with the evolution of mosses. This is an adaptation that helped bryophytes – the group of plants to which mosses belong – to make the transition from aquatic to terrestrial plants 500 million years ago. Overall, more than 80% of the spores survived the journey to space and then back to Earth. And only 11% were unable to germinate after being brought back to the lab on Earth. That’s impressive! In addition, the researchers also tested the levels of chlorophyll in the spores. After the exposure to space, the spores still had normal amounts of chlorophyll, except for chlorophyll a specifically. In that case, there was a 20% reduction. Chlorophyll a is used in oxygenic photosynthesis. It absorbs the most energy from wavelengths of violet-blue and orange-red light. Tomomichi Fujita at Hokkaido University in Japan is the lead author of the new study about moss in space. Image via Hokkaido University. Spores could have survived for 15 years The time available for the experiment was limited to the several months. However, the researchers wondered if the moss spores could have survived even longer. And using mathematical models, they determined the spores would likely have continued to live in space for about 15 years, or 5,600 days, altogether. The researchers note this prediction is a rough estimate. More data would still be needed to make that assessment even more accurate. So the results show just how resilient moss is, and perhaps some other kinds of life, too. Fujita said: This study demonstrates the astonishing resilience of life that originated on Earth. Ultimately, we hope this work opens a new frontier toward constructing ecosystems in extraterrestrial environments such as the moon and Mars. I hope that our moss research will serve as a starting point. Bottom line: In an experiment on the outside of the International Space Station, a species of moss survived in space for nine months. And it could have lasted much longer. Source: Extreme environmental tolerance and space survivability of the moss, Physcomitrium patens Via EurekAlert! Read more: This desert moss could grow on Mars, no greenhouse needed Read more: Colorful life on exoplanets might be lurking in cloudsThe post This moss survived in space for 9 months first appeared on EarthSky.

Medical Imaging Contributing To Water Pollution, Experts Say

By Dennis Thompson HealthDay ReporterTHURSDAY, Dec. 11, 2025 (HealthDay News) — Contrast chemicals injected into people for medical imaging scans...

By Dennis Thompson HealthDay ReporterTHURSDAY, Dec. 11, 2025 (HealthDay News) — Contrast chemicals injected into people for medical imaging scans are likely contributing to water pollution, a new study says.Medicare patients alone received 13.5 billion milliliters of contrast media between 2011 and 2024, and those chemicals wound up in waterways after people excreted them, researchers recently reported in JAMA Network Open.“Contrast agents are necessary for effective imaging, but they don’t disappear after use,” said lead researcher Dr. Florence Doo, an assistant professor at the University of Maryland Medical Intelligent Imaging Center in Baltimore.“Iodine and gadolinium are non-renewable resources that can enter wastewater and accumulate in rivers, oceans and even drinking water,” Doo said in a news release.People undergoing X-ray or CT scans are sometimes given iodine or barium-sulfate compounds that cause certain tissues, blood vessels or organs to light up, allowing radiologists a better look at potential health problems.For MRI scans, radiologists use gadolinium, a substance that alters the magnetic properties of water molecules in the human body.These are critical for diagnosing disease, but they are also persistent pollutants, researchers said in background notes. They aren’t biodegradable, and conventional wastewater treatment doesn’t fully remove them.For the new study, researchers analyzed 169 million contrast-enhanced imaging procedures that Medicare covered over 13 years.Iodine-based contrast agents accounted for more than 95% of the total volume, or nearly 12.9 billion milliliters. Of those, agents used in CT scans of the abdomen and pelvis alone contributed 4.4 billion milliliters.Gadolinium agents were less frequently used, but still contributed nearly 600 million milliliters, researchers said. Brain MRIs were the most common scan using these contrast materials.Overall, just a handful of procedures accounted for 80% of all contrast use, researchers concluded.“Our study shows that a small number of imaging procedures drive the majority of contrast use. Focusing on those highest-use imaging types make meaningful changes tractable and could significantly reduce health care’s environmental footprint,” researcher Elizabeth Rula, executive director of the Harvey L. Neiman Health Policy Institute in Reston, Va., said in a news release.Doctors can help by making sure their imaging orders are necessary, while radiologists can lower the doses of contrast agents by basing them on a patient’s weight, researchers said.Biodegradable contrast media are under development, researchers noted. Another solution could involve AI, which might be able to accurately analyze medical imaging scans even if less contrast media is used.“We can’t ignore the environmental consequences of medical imaging,” Doo said. “Stewardship of contrast agents is a measurable and impactful way to align patient care with planetary health and should be an important part of broader health care sustainability efforts.”SOURCES: Harvey L. Neiman Health Policy Institute, news release, Dec. 4, 2025; JAMA Network Open, Dec. 5, 2025Copyright © 2025 HealthDay. All rights reserved.

Cars to AI: How new tech drives demand for specialized materials

Generative artificial intelligence has become widely accepted as a tool that increases productivity. Yet the technology is far from mature. Large language models advance rapidly from one generation to the next, and experts can only speculate how AI will affect the workforce and people’s daily lives. As a materials scientist, I am interested in how materials and the technologies that derive from them affect society. AI is one example of a technology driving global change—particularly through its demand for materials and rare minerals. But before AI evolved to its current level, two other technologies exemplified the process created by the demand for specialized materials: cars and smartphones. Often, the mass adoption of a new invention changes human behavior, which leads to new technologies and infrastructures reliant upon the invention. In turn, these new technologies and infrastructures require new or improved materials—and these often contain critical minerals: those minerals that are both essential to the technology and strain the supply chain. The unequal distribution of these minerals gives leverage to the nations that produce them. The resulting power shifts strain geopolitical relations and drive the search for new mineral sources. New technology nurtures the mining industry. The car and the development of suburbs At the beginning of the 20th century, only 5 out of 1,000 people owned a car, with annual production around a few thousand. Workers commuted on foot or by tram. Within a 2-mile radius, many people had all they needed: from groceries to hardware, from school to church, and from shoemakers to doctors. Then, in 1913, Henry Ford transformed the industry by inventing the assembly line. Now, a middle class family could afford a car: Mass production cut the price of the Model T from US$850 in 1908 to $360 in 1916. While the Great Depression dampened the broad adoption of the car, sales began to increase again after the end of World War II. With cars came more mobility, and many people moved farther away from work. In the 1940s and 1950s, a powerful highway lobby that included oil, automobile, and construction interests promoted federal highway and transportation policies, which increased automobile dependence. These policies helped change the landscape: Houses were spaced farther apart, and located farther away from the urban centers where many people worked. By the 1960s, two-thirds of American workers commuted by car, and the average commute had increased to 10 miles. Public policy and investment favored suburbs, which meant less investment in city centers. The resulting decay made living in downtown areas of many cities undesirable and triggered urban renewal projects. Long commutes added to pollution and expenses, which created a demand for lighter, more fuel-efficient cars. But building these required better materials. In 1970, the entire frame and body of a car was made from one steel type, but by 2017, 10 different, highly specialized steels constituted a vehicle’s lightweight form. Each steel contains different chemical elements, such as molybdenum and vanadium, which are mined only in a few countries. While the car supply chain was mostly domestic until the 1970s, the car industry today relies heavily on imports. This dependence has created tension with international trade partners, as reflected by higher tariffs on steel. The cellphone and American life The cellphone presents another example of a technology creating a demand for minerals and affecting foreign policy. In 1983, Motorola released the DynaTAC, the first commercial cellular phone. It was heavy, expensive, and its battery lasted for only half an hour, so few people had one. Then in 1996, Motorola introduced the flip phone, which was cheaper, lighter, and more convenient to use. The flip phone initiated the mass adoption of cellphones. However, it was still just a phone: Unlike today’s smartphones, all it did was send and receive calls and texts. In 2007, Apple redefined communication with the iPhone, inventing the touchscreen and integrating an internet navigator. The phone became a digital hub for navigating, finding information, and building an online social identity. Before smartphones, mobile phones supplemented daily life. Now, they structure it. In 2000, fewer than half of American adults owned a cellphone, and nearly all who did used it only sporadically. In 2024, 98% of Americans over the age of 18 reported owning a cellphone, and over 90% owned a smartphone. Without the smartphone, most people cannot fulfill their daily tasks. Many individuals now experience nomophobia: They feel anxious without a cellphone. Around three-quarters of all stable elements are represented in the components of each smartphone. These elements are necessary for highly specialized materials that enable touchscreens, displays, batteries, speakers, microphones, and cameras. Many of these elements are essential for at least one function and have an unreliable supply chain, which makes them critical. Critical materials and AI Critical materials give leverage to countries that have a monopoly in mining and processing them. For example, China has gained increased power through its monopoly on rare earth elements. In April 2025, in response to U.S. tariffs, China stopped exporting rare earth magnets, which are used in cellphones. The geopolitical tensions that resulted demonstrate the power embodied in the control over critical minerals. The mass adoption of AI technology will likely change human behavior and bring forth new technologies, industries, and infrastructure on which the U.S. economy will depend. All of these technologies will require more optimized and specialized materials and create new material dependencies. By exacerbating material dependencies, AI could affect geopolitical relations and reorganize global power. America has rich deposits of many important minerals, but extraction of these minerals comes with challenges. Factors including slow and costly permitting, public opposition, environmental concerns, high investment costs, and an inadequate workforce all can prevent mining companies from accessing these resources. The mass adoption of AI is already adding pressure to overcome these factors and to increase responsible domestic mining. While the path from innovation to material dependence spanned a century for cars and a couple of decades for cellphones, the rapid advancement of large language models suggests that the scale will be measured in years for AI. The heat is already on. Peter Müllner is a distinguished professor in materials science and engineering at Boise State University. This article is republished from The Conversation under a Creative Commons license. Read the original article.

Generative artificial intelligence has become widely accepted as a tool that increases productivity. Yet the technology is far from mature. Large language models advance rapidly from one generation to the next, and experts can only speculate how AI will affect the workforce and people’s daily lives. As a materials scientist, I am interested in how materials and the technologies that derive from them affect society. AI is one example of a technology driving global change—particularly through its demand for materials and rare minerals. But before AI evolved to its current level, two other technologies exemplified the process created by the demand for specialized materials: cars and smartphones. Often, the mass adoption of a new invention changes human behavior, which leads to new technologies and infrastructures reliant upon the invention. In turn, these new technologies and infrastructures require new or improved materials—and these often contain critical minerals: those minerals that are both essential to the technology and strain the supply chain. The unequal distribution of these minerals gives leverage to the nations that produce them. The resulting power shifts strain geopolitical relations and drive the search for new mineral sources. New technology nurtures the mining industry. The car and the development of suburbs At the beginning of the 20th century, only 5 out of 1,000 people owned a car, with annual production around a few thousand. Workers commuted on foot or by tram. Within a 2-mile radius, many people had all they needed: from groceries to hardware, from school to church, and from shoemakers to doctors. Then, in 1913, Henry Ford transformed the industry by inventing the assembly line. Now, a middle class family could afford a car: Mass production cut the price of the Model T from US$850 in 1908 to $360 in 1916. While the Great Depression dampened the broad adoption of the car, sales began to increase again after the end of World War II. With cars came more mobility, and many people moved farther away from work. In the 1940s and 1950s, a powerful highway lobby that included oil, automobile, and construction interests promoted federal highway and transportation policies, which increased automobile dependence. These policies helped change the landscape: Houses were spaced farther apart, and located farther away from the urban centers where many people worked. By the 1960s, two-thirds of American workers commuted by car, and the average commute had increased to 10 miles. Public policy and investment favored suburbs, which meant less investment in city centers. The resulting decay made living in downtown areas of many cities undesirable and triggered urban renewal projects. Long commutes added to pollution and expenses, which created a demand for lighter, more fuel-efficient cars. But building these required better materials. In 1970, the entire frame and body of a car was made from one steel type, but by 2017, 10 different, highly specialized steels constituted a vehicle’s lightweight form. Each steel contains different chemical elements, such as molybdenum and vanadium, which are mined only in a few countries. While the car supply chain was mostly domestic until the 1970s, the car industry today relies heavily on imports. This dependence has created tension with international trade partners, as reflected by higher tariffs on steel. The cellphone and American life The cellphone presents another example of a technology creating a demand for minerals and affecting foreign policy. In 1983, Motorola released the DynaTAC, the first commercial cellular phone. It was heavy, expensive, and its battery lasted for only half an hour, so few people had one. Then in 1996, Motorola introduced the flip phone, which was cheaper, lighter, and more convenient to use. The flip phone initiated the mass adoption of cellphones. However, it was still just a phone: Unlike today’s smartphones, all it did was send and receive calls and texts. In 2007, Apple redefined communication with the iPhone, inventing the touchscreen and integrating an internet navigator. The phone became a digital hub for navigating, finding information, and building an online social identity. Before smartphones, mobile phones supplemented daily life. Now, they structure it. In 2000, fewer than half of American adults owned a cellphone, and nearly all who did used it only sporadically. In 2024, 98% of Americans over the age of 18 reported owning a cellphone, and over 90% owned a smartphone. Without the smartphone, most people cannot fulfill their daily tasks. Many individuals now experience nomophobia: They feel anxious without a cellphone. Around three-quarters of all stable elements are represented in the components of each smartphone. These elements are necessary for highly specialized materials that enable touchscreens, displays, batteries, speakers, microphones, and cameras. Many of these elements are essential for at least one function and have an unreliable supply chain, which makes them critical. Critical materials and AI Critical materials give leverage to countries that have a monopoly in mining and processing them. For example, China has gained increased power through its monopoly on rare earth elements. In April 2025, in response to U.S. tariffs, China stopped exporting rare earth magnets, which are used in cellphones. The geopolitical tensions that resulted demonstrate the power embodied in the control over critical minerals. The mass adoption of AI technology will likely change human behavior and bring forth new technologies, industries, and infrastructure on which the U.S. economy will depend. All of these technologies will require more optimized and specialized materials and create new material dependencies. By exacerbating material dependencies, AI could affect geopolitical relations and reorganize global power. America has rich deposits of many important minerals, but extraction of these minerals comes with challenges. Factors including slow and costly permitting, public opposition, environmental concerns, high investment costs, and an inadequate workforce all can prevent mining companies from accessing these resources. The mass adoption of AI is already adding pressure to overcome these factors and to increase responsible domestic mining. While the path from innovation to material dependence spanned a century for cars and a couple of decades for cellphones, the rapid advancement of large language models suggests that the scale will be measured in years for AI. The heat is already on. Peter Müllner is a distinguished professor in materials science and engineering at Boise State University. This article is republished from The Conversation under a Creative Commons license. Read the original article.

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