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In the Southwest, solar panels can help both photovoltaics and crops


Cultivation in a harsh climate

Solar arrays can shade crops from sun while moisture cools the panels to increase their productivity.

Volunteers with the National Renewable Energy Laboratory work at Jack’s Solar Garden in Longmont, Colorado. Credit: Bryan Bechtold/NREL

This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, energy, and the environment. Sign up for their newsletter here.

“We were getting basil leaves the size of your palm,” University of Arizona researcher Greg Barron-Gafford said, describing some of the benefits he and his team have seen farming under solar panels in the Tucson desert.

For 12 years, Barron-Gafford has been investigating agrivoltaics, the integration of solar arrays into working farmland. This practice involves growing crops or other vegetation, such as pollinator-friendly plants, under solar panels, and sometimes grazing livestock in this greenery. Though a relatively new concept, at least 604 agrivoltaic sites have popped up across the United States, according to OpenEI.

Researchers like Barron-Gafford think that, in addition to generating carbon-free electricity, agrivoltaics could offer a ray of hope for agriculture in an increasingly hotter and drier Southwest, as the shade created by these systems has been found to decrease irrigation needs and eliminate heat stress on crops. Plus, the cooling effects of growing plants under solar arrays can actually make the panels work better.

But challenges remain, including some farmers’ attitudes about the practice and funding difficulties.

Overcoming a climate conundrum

While renewable electricity from sources like solar panels is one of the most frequently touted energy solutions to help reduce the carbon pollution that’s driving climate change, the warming climate itself is making it harder for solar arrays to do their job, Barron-Gafford said. An optimal functioning temperature for panels is around 75° Fahrenheit, he explained. Beyond that, any temperature increase reduces the photovoltaic cells’ efficiency.

“You can quickly see how this solution for our changing climate of switching to more renewable energy is itself sensitive to the changing climate,” he said.

This problem is especially pertinent in the Southwest, where historically hot temperatures are steadily increasing. Tucson, for instance, saw a record-breaking 112 days of triple-digit heat in 2024, according to National Weather Service Data, and the US Environmental Protection Agency reports that every part of the Southwest experienced higher average temperatures between 2000 and 2023 compared to the long-term average from 1895 to 2023.

However, planting vegetation under solar panels—as opposed to the more traditional method of siting solar arrays on somewhat barren land—can help cool them. In one set of experiments, Barron-Gafford’s team found that planting cilantro, tomatoes and peppers under solar arrays reduced the panels’ surface temperature by around 18 degrees Fahrenheit. That’s because plants release moisture into the air during their respiration process, in which they exchange oxygen for carbon dioxide.

“This invisible power of water coming out of plants was actually cooling down the solar panels,” Barron-Gafford said.

Throwing shade

While Barron-Gafford said some laughed him off when he first proposed the idea of growing crops in the shade of solar panels, this added sun shield can actually help them grow better, especially in the Southwest, where many backyard gardeners already employ shade cloths to protect their gardens from the blazing heat.

“Many people don’t understand that in Colorado and much of the West, most plants get far too much sunlight,” said Byron Kominek, owner/manager of Jack’s Solar Garden in Boulder County, Colorado, which began implementing agrivoltaics in 2020. “Having some shade is a benefit to them.”

Jack’s Solar Garden has integrated 3,276 solar panels over about four acres of farmland, growing crops like greens and tomatoes. Meg Caley with Sprout City Farms, a nonprofit that helps with farming duties at Jack’s Solar Garden, said they’ve been able to produce Swiss chard “the size of your torso.”

“The greens just get huge,” she said. “You have to chop them up to fit them in your refrigerator.”

She added that the shade seems to improve the flavor of the vegetables and prevents them from bolting, when plants prematurely produce flowers and seeds, diverting energy away from leaf or root growth.

“Plants when they’re stressed out can have more of a bitter flavor,” she explained. “So the arugula that we grow is not as bitter or spicy. It’s sweeter. The spinach is sweeter too.”

Barron-Gafford and his team are seeing the same thing in Arizona, where they grow a variety of produce like beans, artichokes, potatoes, kale, and basil.

“We’ve grown 30-plus different types of things across different wet winters and dry winters and exceptionally hot summers, dry summers, average or close to average summers,” he said of the solar-shaded crops. “And across everything we’ve done, we’ve seen equal or greater production down here in the Southwest, the dry land environments, where it really benefits to get some shade.”

As in Colorado, some of those crops are growing to epic proportions.

“We’ve made bok choy the size of a toddler,” Barron-Gafford said.

All that shade provides another important benefit in a drought-stricken Southwest—lower water requirements for crops. Because less direct sunlight is hitting the ground, it decreases the evaporation rate, which means water stays in the soil longer after irrigation. Barron-Gafford and his team have been running experiments for the last seven or so years to see how this plays out with different crops in an agrivoltaic setting.

“What is the evaporation rate under something that’s big and bushy like a bean or potato plant versus something thinner above ground, like a carrot?” is one of the questions Barron-Gafford said they have tried to answer. “For the most part, I would say that we are able to cut back our irrigation by more than half.”

They are partnering with Jack’s Solar Farm on water research in Colorado and have so far found similar results there.

This shade has another benefit in a warming world—respite for farmworkers. Heat-related illnesses are a growing concern for people who work outside, and one recent study predicted climate change will quadruple U.S. outdoor workers’ exposure to extreme heat conditions by 2065.

But with solar arrays in the fields, “if you really carefully plan out your day, you can work in the shade,” a factor that can help increase worker safety on hot days, Caley said.

The AgriSolar Clearinghouse performed skin temperature readings under solar panels and full sun at a number of sites across the United States, finding a skin temperature decrease of 15.3° in Boulder and 20.8° in Phoenix.

“I don’t know what the future holds”

Despite the benefits of agrivoltaics, the up-front cost of purchasing a solar array remains a barrier to farmers.

“Once people see the potential of agrivoltaics, you run into the next challenge, which is how do you fund someone getting into this on their site?” Barron-Gafford said. “And depending on the amount of capital or access to capital that a farmer has, you’re going to get a wildly different answer.”

While expenses are dependent on the size of the installation, a 25-kilowatt system would require an upfront cost of around $67,750, according to AgriSolar Clearinghouse. For comparison, the median size of a residential solar array in 2018 was around 6 kW, the organization stated, which would cost around $16,260 to install.

Kominek said the total initial cost of implementing a 1.2 megawatt capacity agrivoltaics setup on his farm in Colorado was around $2 million, but that the investment has paid off. In addition to the revenue he earns from farming, all of the energy produced by the arrays is sold to clients in the community through a local utility company, earning the farm money.

The Rural Energy for America program has been one resource for farmers interested in agrivoltaics, offering loans and grants to help install solar. However, it’s unclear how this program will move forward amid current federal spending cuts.

Meanwhile, some of the federal grant programs that Barron-Gafford has relied on have suddenly come to a halt, he said, putting his research in danger. But, as federal support dries up, some states are charging on with their own funding opportunities to develop farm field solar projects. For instance, Colorado’s Agrivoltaics Research and Demonstration Grant offers money for demonstrations of agrivoltaics, research projects, and outreach campaigns.

There are other challenges as well. Caley, for instance, said farming around solar panels is akin to working in an “obstacle course.” She and her team, who mostly work manually, have found ways to work around them by being aware of their surroundings so that they don’t accidentally collide with the panels or strike them with their tools. This job is also made easier since Kominek invested between $80,000 and $100,000 to elevate his farm’s panels, which better allows animals, taller crops and farming equipment to operate beneath.

Still, a 2025 University of Arizona study that interviewed farmers and government officials in Pinal County, Arizona, found that a number of them questioned agrivoltaics’ compatibility with large-scale agriculture.

“I think it’s a great idea, but the only thing … it wouldn’t be cost-efficient … everything now with labor and cost of everything, fuel, tractors, it almost has to be super big … to do as much with as least amount of people as possible,” one farmer stated.

Many farmers are also leery of solar, worrying that agrivoltaics could take working farmland out of use, affect their current operations or deteriorate soils.

Those fears have been amplified by larger utility-scale initiatives, like Ohio’s planned Oak Run Solar Project, an 800 megawatt project that will include 300 megawatts of battery storage, 4,000 acres of crops and 1,000 grazing sheep in what will be the country’s largest agrivoltaics endeavor to date. Opponents of the project worry about its visual impacts and the potential loss of farmland.

An American Farmland Trust survey found that Colorado farmers would prefer that utility-scale solar projects be sited on less productive or underutilized farmland rather than on highly productive or actively farmed land. They also expressed concern for the potential negative impact that solar projects could have on farm productivity and the health of the land, including soil quality.

Some farmers also worry that the solar panels could leach metals into the ground, contaminating their crops, Barron-Gafford said. But while agrivoltaic systems are put together in a way that makes that highly unlikely, there’s no reason not to add soil sampling studies into the work they’re doing to reassure farmers, he added.

And agrivoltaics advocates say that the practice could actually improve soil health by reducing erosion, increasing the amount of organic matter and enhancing soil biology with cooler, moister conditions.

“I wish more people spent time listening to the folks on the ground and the folks experiencing these transitions,” Barron-Gafford added. “Because you understand more that way in terms of what their motivations or concerns actually are.”

“We don’t have to choose”

While Caley understands farmers’ concerns, she sees agrivoltaics as a way for them to keep agricultural land in production while also benefiting from solar electricity.

“The tension in a lot of communities seems to be that people don’t want to see agricultural land taken out of production in order to bring a solar farm in,” she said. “The idea here is that we don’t have to choose. We can have both.”

Kominek encourages people to envision what our landscapes and climate will look like in the next 20 to 30 years, adding that in his part of Colorado, it only stands to get hotter and drier, making agrivoltaics a smart solution for farming and clean energy production.

“Communities around the world need to figure out what changes they need to make now to help people adapt to what our climates and landscapes will be in the future,” he said. “Agrivoltaics is a climate adaptation tool that will benefit any community where such systems are built as the decades pass.”

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Mighty mitochondria: Cell powerhouses harnessed for healing


rescuing suboptimal organs

Researchers hope a new technique can treat a variety of damaged organs.

James McCully was in the lab extracting tiny structures called mitochondria from cells when researchers on his team rushed in. They’d been operating on a pig heart and couldn’t get it pumping normally again.

McCully studies heart damage prevention at Boston Children’s Hospital and Harvard Medical School and was keenly interested in mitochondria. These power-producing organelles are particularly important for organs like the heart that have high energy needs. McCully had been wondering whether transplanting healthy mitochondria into injured hearts might help restore their function.

The pig’s heart was graying rapidly, so McCully decided to try it. He loaded a syringe with the extracted mitochondria and injected them directly into the heart. Before his eyes, it began beating normally, returning to its rosy hue.

Since that day almost 20 years ago, McCully and other researchers have replicated that success in pigs and other animals. Human transplantations followed, in babies who suffered complications from heart surgery—sparking a new field of research using mitochondria transplantation to treat damaged organs and disease. In the last five years, a widening array of scientists have begun exploring mitochondria transplantation for heart damage after cardiac arrest, brain damage following stroke, and damage to organs destined for transplantation.

This graphic depicts the basic steps and results of mitochondrial transplantation. Scientists think that donor mitochondria fuse with the recipient cells’ mitochondrial networks. Then they work to shrink the size of the infarct (the area of tissue dying from lack of blood and oxygen), among other effects. Scientists have studied such transplants in kidneys, livers, muscle, brains, hearts, and lungs. Credit: Knowable Magazine

Mitochondria are best known for producing usable energy for cells. But they also send molecular signals that help to keep the body in equilibrium and manage its immune and stress responses. Some types of cells may naturally donate healthy mitochondria to other cells in need, such as brain cells after a stroke, in a process called mitochondria transfer. So the idea that clinicians could boost this process by transplanting mitochondria to reinvigorate injured tissue made sense to some scientists.

From studies in rabbits and rat heart cells, McCully’s group has reported that the plasma membranes of cells engulf the mitochondria and shuttle them inside, where they fuse with the cell’s internal mitochondria. There, they seem to cause molecular changes that help recover heart function: When comparing blood- and oxygen-deprived pig hearts treated with mitochondria to ones receiving placebos, McCully’s group saw differences in gene activity and proteins that indicated less cell death and less inflammation.

About 10 years ago, Sitaram Emani, a cardiac surgeon at Boston Children’s Hospital, reached out to McCully about his work with animal hearts. Emani had seen how some babies with heart defects couldn’t fully recover after heart surgery complications and wondered whether McCully’s mitochondria transplantation method could help them.

During surgery to repair heart defects, surgeons use a drug to stop the heart so they can operate. But if the heart is deprived of blood and oxygen for too long, mitochondria start to fail and cells start to die, in a condition called ischemia. When blood begins flowing again, instead of returning the heart to its normal state, it can damage and kill more cells, resulting in ischemia-reperfusion injury.

Since McCully’s eight years of studies in rabbits and pigs hadn’t revealed safety concerns with mitochondria transplantation, McCully and Emani thought it would be worth trying the procedure in babies unlikely to regain enough heart function to come off heart-lung support.

Parents of 10 patients agreed to the experimental procedure, which was approved by the institute’s review board. In a pilot that ran from 2015 to 2018, McCully extracted pencil-eraser-sized muscle samples from the incisions made for the heart surgery, used a filtration technique to isolate mitochondria and checked that they were functional. Then the team injected the organelles into the baby’s heart.

Eight of those 10 babies regained enough heart function to come off life support, compared to just four out of 14 similar cases from 2002 to 2018 that were used for historical comparison, the team reported in 2021. The treatment also shortened recovery time, which averaged two days in the mitochondrial transplant group compared with nine days in the historical control group. Two patients did not survive — in one case, the intervention came after the rest of the baby’s organs began failing, and in another, a lung issue developed four months later. The group has now performed this procedure on 17 babies.

The transplant procedure remains experimental and is not yet practical for wider clinical use, but McCully hopes that it can one day be used to treat kidney, lung, liver, and limb injuries from interrupted blood flow.

The results have inspired other clinicians whose patients suffer from similar ischemia-reperfusion injuries. One is ischemic stroke, in which clots prevent blood from reaching the brain. Doctors can dissolve or physically remove the clots, but they lack a way to protect the brain from reperfusion damage. “You see patients that lose their ability to walk or talk,” says Melanie Walker, an endovascular neurosurgeon at the University of Washington School of Medicine in Seattle. “You just want to do better and there’s just nothing out there.”

Walker came across McCully’s mitochondrial transplant studies 12 years ago and, in reading further, was especially struck by a report on mice from researchers at Massachusetts General Hospital and Harvard Medical School that showed the brain’s support and protection cells—the astrocytes—may transfer some of their mitochondria to stroke-damaged neurons to help them recover. Perhaps, she thought, mitochondria transplantation could help in human stroke cases too.

She spent years working with animal researchers to figure out how to safely deliver mitochondria to the brain. She tested the procedure’s safety in a clinical trial with just four people with ischemic stroke, using a catheter fed through an artery in the neck to manually remove the blockage causing the stroke, then pushing the catheter further along and releasing the mitochondria, which would travel up blood vessels to the brain.

The findings, published in 2024 in the Journal of Cerebral Blood Flow & Metabolism, show that the infused patients suffered no harm; the trial was not designed to test effectiveness. Walker’s group is now recruiting participants to further assess the intervention’s safety. The next step will be to determine whether the mitochondria are getting where they need to be, and functioning. “Until we can show that, I do not believe that we will be able to say that there’s a therapeutic benefit,” Walker says.

Researchers hope that organ donation might also gain from mitochondria transplants. Donor organs like kidneys suffer damage when they lack blood supply for too long, and transplant surgeons may reject kidneys with a higher risk of these injuries.

To test whether mitochondrial transplants can reinvigorate them, transplant surgeon-scientist Giuseppe Orlando of Wake Forest University School of Medicine in Winston-Salem and his colleagues injected mitochondria into four pig kidneys and a control substance into three pig kidneys. In 2023 in the Annals of Surgery, they reported fewer dying cells in the mitochondria-treated kidneys and far less damage. Molecular analyses also showed a boost in energy production.

It’s still early days, Orlando says, but he’s confident that mitochondria transplantation could become a valuable tool in rescuing suboptimal organs for donation.

The studies have garnered both excitement and skepticism. “It’s certainly a very interesting area,” says Koning Shen, a postdoctoral mitochondrial biologist at the University of California, Berkeley, and coauthor of an overview of the signaling roles of mitochondria in the 2022 Annual Review of Cell and Developmental Biology. She adds that scaling up extraction of mitochondria and learning how to store and preserve the isolated organelles are major technical hurdles to making such treatments a larger reality. “That would be amazing if people are getting to that stage,” she says.

“I think there are a lot of thoughtful people looking at this carefully, but I think the big question is, what’s the mechanism?” says Navdeep Chandel, a mitochondria researcher at Northwestern University in Chicago. He doubts that donor mitochondria fix or replace dysfunctional native organelles, but says it’s possible that mitochondria donation triggers stress and immune signals that indirectly benefit damaged tissue.

Whatever the mechanism, some animal studies do suggest that the mitochondria must be functional to impart their benefits. Lance Becker, chair of emergency medicine at Northwell Health in New York who studies the role of mitochondria in cardiac arrest, conducted a study comparing fresh mitochondria, mitochondria that had been frozen then thawed, and a placebo to treat rats following cardiac arrest. The 11 rats receiving fresh, functioning mitochondria had better brain function and a higher rate of survival three days later than the 11 rats receiving a placebo; the non-functional frozen-thawed mitochondria did not impart these benefits.

It will take more research into the mechanisms of mitochondrial therapy, improved mitochondria delivery techniques, larger trials and a body of reported successes before mitochondrial transplants can be FDA-approved and broadly used to treat ischemia-reperfusion injuries, researchers say. The ultimate goal would be to create a universal supply of stored mitochondria — a mitochondria bank, of sorts — that can be tapped for transplantation by a wide variety of health care providers.

“We’re so much at the beginning—we don’t know how it works,” says Becker. “But we know it’s doing something that is mighty darn interesting.”

This article originally appeared in Knowable Magazine, a nonprofit publication dedicated to making scientific knowledge accessible to all. Sign up for Knowable Magazine’s newsletter.

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Wildfires are challenging air quality monitoring infrastructure


Can the US’s system to monitor air pollutants keep up with a changing climate?

The Downtown Manhattan skyline stands shrouded in a reddish haze as a result of Canadian wildfires on June 6, 2023. Credit: Lokman Vural Elibol/Anadolu Agency via Getty Images

Ten years ago, Tracey Holloway, an atmospheric scientist at the University of Wisconsin–Madison, would have said that air pollution in the United States was a huge success story. “Our air had been getting cleaner and cleaner almost everywhere, for almost every pollutant,” she said. But in June 2023, as wildfire smoke from Canada spread, the air quality dropped to historically low levels in her home state of Wisconsin.

Just last month, the region’s air quality dipped once more to unhealthy levels. Again, wildfires were to blame.

While the US has made significant strides in curbing car and industrial pollution through setting emission limits on industrial facilities and automakers, the increasing frequency and intensity of fires are “erasing the gains that we have obtained through this pollutant control effort,” said Nga Lee “Sally” Ng, an aerosol researcher at Georgia Institute of Technology.

The changing dynamics present a challenge for both residents and researchers tracking air quality. Many of the high-quality monitors used to measure pollution reside near large cities and stationary sources, such as coal-powered plants, and don’t cover the US uniformly. Regions that lack such stations are called air quality monitoring deserts, and they may leave vulnerable populations in the dark about their local conditions.

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel hundreds of miles or more from fire sources to affect air quality and public health in distant communities. That smoke can also include toxins, such as lead when cars and homes burn.

“Fires are really changing the story,” said Holloway.

Since the introduction of the Air Pollution Control Act of 1955, air quality has been recognized as a national issue in the United States. Then with the enactment of the Clean Air Act in 1970 and following amendments, researchers and federal agencies began to monitor the level of pollutants, particularly carbon monoxide, nitrogen dioxide, ozone, particulate matter, and sulfur dioxide, to identify if these were up to the established National Ambient Air Quality Standards.

The Environmental Protection Agency uses these pollutant levels to calculate an air quality index, or AQI, a numerical and color-coded system scaled from 0 to 500 that informs the public how safe the air is. Higher numbers, associated with red, purple, and maroon, indicate worse quality; in June 2023, for example, parts of Wisconsin topped 300, indicating “hazardous” air. All residents were advised to stay indoors as much as possible.

The EPA and other federal agencies make use of various networks of advanced ground monitors that can pick up on different air pollutants, and many experts say that the US has one of the most advanced air quality tracking systems in the world.

Still, there are gaps: Regulatory monitors cost around $50,000 upfront and require continuous maintenance, so states place them in locations where researchers expect pollution may be high. Currently, there are 4,821 active monitors across the US in the EPA’s AirData system—many of which were installed in the 1990s and 2000s—but they are more likely to be near more populated areas and in states in the West and Northeast, creating air quality monitoring deserts elsewhere, according to a new study published in April.

When looking at their distribution, researchers at The Pennsylvania State University found that 59 percent of US counties—home to more than 50 million people—lacked an air quality monitoring site. Many of those air quality monitoring deserts were in rural areas in the South and Midwest. Counties with higher poverty rates and a higher concentration of Black and Hispanic residents were also more likely to be air quality monitoring deserts when accounting for population.

Similarly, a Reuters investigation found that 120 million Americans live in counties that have no monitors for small particle pollution and that in 2020, “the government network of 3,900 monitoring devices nationwide has routinely missed major toxic releases and day-to-day pollution dangers,” including those linked to refinery explosions. (In response to a request for comment, an EPA spokesperson noted that the agency “continues to work closely with state, local, and tribal monitoring programs to expand the use of air sensors to improve measurement coverage, which provide near-real time data to a number of publicly available sources, such as the AIRNow Fire and Smoke Map.”)

These gaps in coverage can be accentuated with wildfires, which often originate in sparsely populated areas without monitor coverage. Wildfires can also be unpredictable, making it difficult to identify priority sites for new monitors. “You certainly can’t anticipate what areas are going to see wildfire smoke,” said Mary Uhl, executive director of Western States Air Resources Council, which shares air quality information across 15 western state air agencies. Meanwhile, wildfire pollutants can spread widely from their original source, and smoke particles can sometimes travel for up to 10 days, Ng pointed out.

Such shifting dynamics are driving researchers to expand their monitoring infrastructure and complement it with crowdsourced and satellite data to capture the widespread pollution. “There will be potential to increase the spatial covering of these monitoring networks,” said Ng. “Because, as you can see, we could still make use of better measurement, maybe at the different community level, to better understand the air that we are being exposed to.”

To expand coverage in a cost-efficient way, agencies are investigating a variety of different approaches and technologies. Low-cost monitors now allow people to crowdsource data about air quality in their communities. (However, these tend to be less precise and accurate than the high-grade instruments.) State, local, and tribal agencies also play a critical role in monitoring air quality, such as New York’s Community Air Monitoring Initiative, which tracked pollution for a year using mobile monitoring in 10 disadvantaged communities with high air pollution burdens. And the EPA has a pilot program that loans compact mobile air monitoring systems to air quality professionals, who can set them up in their vehicles to map air quality during and after wildfires.

Satellites can also provide critical information since they can estimate levels of gases and pollutants, providing data about where pollution levels are highest and how pollutants are transported. “We can see where we’re missing things in those deserts,” said Uhl.

This strategy might be helpful to address the challenge with wildfires because satellites can get a more global view of the spread of pollutants. Fires “change season to season, so they’re not always coming from the same place,” said Holloway, who leads a team that uses NASA satellite data to monitor air quality. “And I think really what you need is a way of evaluating what’s going on over a wide area. And these satellites up in space, I think, offer exactly the tool for the job.”

Other advancements allow scientists to study the composition of pollution more granularly, since different pollutants can have different toxicities and health effects. For example, particulate matter 2.5, or PM2.5—which has a diameter of 2.5 micrometers or less—can cause respiratory and heart problems. Ng led the establishment of a system called ASCENT, or the Atmospheric Science and Chemistry Measurement Network, which measures the specific chemical constituents in PM2.5 to identify which particles might be the most toxic to human health, along with aiming to answer many other scientific questions.

After the Eaton Canyon and Palisades fires that burned across Los Angeles County in January 2025, Ng and colleagues used the system and identified that lead concentration increased approximately 110 times over the average levels, likely due to the ignition of the lead-ridden vehicles, plastics, buildings, and other fuel. The system works as a “magnifying glass to look into PM2.5,” said Ng. Currently, they have 12 sites and hope to expand ASCENT to more locations in the future if resources are available.

Different approaches to collecting air quality monitoring data, along with computational modeling, could be combined to improve researchers’ understanding of air pollution and expand air quality information to underserved populations, said Holloway.

Today, although wildfires represent a new challenge, “we have all these additional tools to help us understand air quality,” said Uhl. “And in the end, that’s what we want to do: We want to understand it. We want to be able to have some ideas, some ways to predict it, to ultimately protect public health.”

This article was originally published on Undark. Read the original article.

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As California faces court battles, states scramble to save their climate goals


With or without authority to regulate heightened emissions, states plan to meet climate goals.

Traffic jam forms on Interstate 5 north of Los Angeles. Credit: Hans Gutknecht/MediaNews Group/Los Angeles Daily News

This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, energy, and the environment. Sign up for their newsletter here.

When President Donald Trump signed legislation to revoke California’s authority to enforce stricter tailpipe emissions standards and to ban sales of gas-powered cars by 2035, the effects rippled far beyond the Golden State.

Seventeen states relied on California’s Clean Air Act waivers to adopt stronger vehicle pollution rules on their own, including New York, New Jersey, Oregon, Massachusetts, and Washington.

California, joined by several states, immediately sought a court injunction, calling the revocation illegal on the basis that the waivers are not subject to congressional review and that it violated decades of legal precedent and procedure. These same states recently launched an Affordable Clean Cars Coalition to coordinate legal action and policy to defend their rights to transition to cleaner vehicles.

As the legal battle plays out, states that have relied on the waivers are leaning into expanding multimillion-dollar ways to keep their EV transitions on track. Among their efforts: amping up rebates, tightening rules on the carbon intensity of fuels, and cracking down on pollution where trucks congregate.

“Climate change is still around, whether we have the waiver or not. So we have to figure out ways to make sure that we’re doing what we can to address the problem at hand,” said Michelle Miano, who heads the New Mexico environment protection division of the Environment Department.

According to data from the California Air Resources Board, the states that have passed tougher pollution rules account for about 40 percent of new light-duty vehicle registrations and 25 percent of new heavy-duty vehicle registrations in the United States, where the transportation sector is the highest source of greenhouse gas emissions as of 2022.

Among these stronger rules are the Advanced Clean Cars (ACC) I and II and Advanced Clean Trucks (ACT), which require automakers to sell a growing share of electric passenger cars and medium and heavy-duty trucks to reduce emissions from gasoline-powered counterparts.

The goal is for all new vehicles sold to be electric by 2035.

Bolstering incentives 

Without ACC and ACT, states are betting they can increase demand for EVs by reducing the costs of buying a vehicle with rebates, vouchers, and grants and boosting the number of charging stations in their states. These incentives can range from a few thousand dollars for individual EV purchases to hundreds of thousands for building charging infrastructure and fleet upgrades.

On June 18, New York announced a $53 million expansion to its voucher program for electrifying last-mile truck fleets, offering vouchers from $340,000 to $425,000 for each truck, depending on the model.

“Despite the current federal administration’s efforts to erode certainty in the ongoing transition to cleaner vehicles, New York State will continue to act to protect our air, lands, and waters,” said Amanda Lefton, commissioner of the Department of Environmental Conservation.

In Oregon, where over a third of in-state emissions are from transportation use, the government this month opened applications for $34 million in grants toward the purchase of zero-emission trucks and developing charging stations for EVs or retrofitting diesel trucks. Lawmakers are considering expanding a popular rebate program through a bill introduced in February. The program so far has given car owners almost $100 million for EV purchases. (The program has been suspended twice after running out of money. It resumed as of May 2025.)

In Massachusetts, Gov. Maura Healey promised in May to announce “dedicated additional grant funding” for electric vehicles and vowed to increase “grant funding opportunities” for charging. Advocacy groups, including the Environmental League of Massachusetts, are counting on increased funding for its MOR-EV rebate program, which provides up to $3,500 for new EV purchases. This year, the rebate program has distributed $15.7 million in total incentives, according to the program’s statistics page.

In Washington state, lawmakers earmarked $126 million—a $16 million increase from 2024—to subsidize purchases of electric truck fleets and chargers. Many states are targeting trucks because they account for a huge share in emissions relative to their number on the road.

Will Toor, executive director of the Colorado Energy Office, credited state rebates and investments in charging infrastructure for helping Colorado reach a 20 percent electric vehicle market share in the first quarter of 2025. One in five new cars sold in the state was electric. Toor also credited the state agency’s EV buyer’s education campaign launched in late 2022, which promoted available rebates and incentives for prospective EV owners.

The scope and generosity of these programs vary widely depending on each state’s climate priorities, budget capacity, and access to federal or market-based funding streams.

“Those types of incentives can be expensive,” said Terrence Gray, director of the Rhode Island Department of Environmental Management. “In Rhode Island, our budget is tight. There’s not a lot of funding available right now, so we would have to make a very strong argument that there’s a strong cost benefit to invest in these types of areas.”

With the Trump administration threatening to cut down federal funding for EV rebates through the Biden-era Inflation Reduction Act, states will have to increasingly rely on themselves to fund these programs.

“The federal government isn’t going to come save us,” said Alex Ambrose, an analyst with the nonpartisan think tank New Jersey Policy Perspective.

Some are already ahead on this. California and Washington state have devised carbon markets that charge major polluters—like oil refiners, power plants, large industrial facilities, and fuel suppliers—for each ton of carbon dioxide they release. California’s auctions bring in about $3 to $4 billion per year, which support programs such as public transit and EV rebates. Washington’s system, launched in 2023, covers around 97 major emitters and has raised over $3 billion in its first two years, funding clean transportation, air quality devices, and EV chargers.

The states of New York, New Jersey, Massachusetts, and other Northeast and Mid-Atlantic states have signed up to the Regional Greenhouse Gas Initiative, or RGGI, which is a cooperative cap-and-invest program launched in 2009 that limits emissions from the power sector and reinvests proceeds into clean energy programs like EV rebates.

Making fuels greener

While many states focus on promoting electric vehicles, others are also targeting the fuel of gas-powered cars, by adopting or developing standards that lower the carbon intensity.

These policies require fuel producers and importers to blend cleaner alternatives like biofuels, renewable diesel, or electricity into the fuel mix.

Patterned after California, Washington has a clean fuel standard in effect since 2023, targeting a 20 percent reduction in carbon intensity of transportation fuels by 2034 compared to 2017 levels.

Oregon has a similar program in place that aims to reduce carbon intensity in fuels by 37 percent by 2035.

New Mexico approved its Clean Transportation Fuel Standard in March 2024. A formal adoption hearing before the Environmental Improvement Board is scheduled to begin in September.

“We know that those (electric) vehicles aren’t for everyone and so we are very respectful of folks that decide to not purchase them,” said Miano, New Mexico’s environment protection division head.

No East Coast states have enacted a clean fuel standard, but New York state legislators may change that.

There are bills in the State Senate and Assembly that, if passed, would require fuel providers to reduce the carbon intensity of their transportation fuels by at least 20 percent by 2030. (Legislation has passed the Senate but remains at the committee level in the Assembly as of June.)

Michigan also had bills introduced in its Senate and House in 2023, but neither passed before the 2024 session ended. Similar bills have not been introduced since then.

Some of these clean fuel standards have faced criticism from environmental advocates, who argue that they allow polluters to buy their way out of reducing emissions.

But Trisha DelloIacono, policy head at advocacy group CALSTART, said the fuel standards remain one of the few politically viable tools to gradually shift the transportation sector toward cleaner fuels.

“What we need to be looking at right now is incremental changes and incremental progress in a place where we’re fighting tooth and nail to hold on to what we have,” DelloIacono said.

Where trucks congregate

There’s also a policy tool called indirect source rules, or ISR.

The rules are called “indirect” because they don’t regulate the vehicles themselves, but the facilities that attract emissions-heavy traffic, like large warehouses, ports, or rail yards. The rules hold the facilities owners or operators responsible for reducing or offsetting the pollution from their profitable traffic.

Studies show that the pollution from these trucks often ends up in nearby neighborhoods, which are disproportionately lower-income and communities of color.

California is currently the only state enforcing ISRs.

In Southern California, large warehouses must take steps to reduce the pollution caused by truck visits, either by switching to electric vehicles, installing chargers, or paying into a clean air fund. It’s the first rule of its kind in the country and it survived a court challenge in 2023, paving the way for other states to consider similar action.

New York is one of them. Its lawmakers introduced a bill in January that could require warehouses with over 50,000 square feet to reduce emissions from trucks by meeting certain benchmarks, such as hosting electric deliveries or offering bike loading zones. New York City has its own version of the rule under deliberation in the Council. As of June 2025, the bill remains stalled in the environmental committee. City Council has until December to act before the bill expires.

In New Jersey, where warehouse growth has boomed, legislators in 2024 proposed a bill that would require “high-traffic facilities” to apply for air pollution permits and provide plans to reduce diesel truck pollution.

“This is really being pushed by the community groups and environmental justice communities, especially in North Jersey. But also, warehouses are starting to pop up even in very rural parts of South Jersey. So this is very quickly becoming a statewide issue in New Jersey,” said Ambrose of the New Jersey Policy Perspective.

In Colorado, its regional air quality council in April announced plans to ask its air quality control commission to use ISR for areas with the worst air quality.

Industry groups, especially in the logistics sector, are pushing back. The industry group Supply Chain Federation told The Wall Street Journal that the southern California ISR was a “backdoor approach [that] does little to cut emissions and instead raises costs, disrupts supply chains.”

Still, experts say this may be one of the few options left for states to cut emissions from traffic-heavy facilities. Because these rules don’t directly regulate the car companies or trucks themselves, they don’t need federal approval.

“We definitely have to be nimble and fluid and also understand the kind of landscape in the state,” DelloIacono said.

Photo of Inside Climate News

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GOP budget bill poised to crush renewable energy in the US

An early evaluation shows the administration’s planned energy policies would result in the drilling of 50,000 new oil wells every year for the next few years, he said, adding that it “ensures the continuation of land devastation… the poisoning of soil and groundwater due to fossil fuels and the continuation of gas blowouts and fires.”

There is nothing beneficial about the tax, he said, “only guaranteed misery.”

An analysis by the Rhodium Group, and energy policy research institute, projected that the Republican regime’s proposed energy policies would result in about 4 billion tons more greenhouse gas emissions than a continuation of current policies—enough to raise the average global temperature by .0072 degrees Fahrenheit.

The overall budget bill was also panned in a June 28 statement by the president of North America’s Building Trades Unions, Sean McGarvey.

McGarvey called it “a massive insult to the working men and women of North America’s Building Trades Unions and all construction workers.”

He said that, as written, the budget “stands to be the biggest job-killing bill in the history of this country,” potentially costing as many jobs as shutting down 1,000 Keystone X pipeline projects, threatening an estimated 1.75 million construction jobs and over 3 billion work hours, which translates to $148 billion in lost annual wages and benefits.

“These are staggering and unfathomable job loss numbers, and the bill throws yet another lifeline and competitive advantage to China in the race for global energy dominance,” he said.

Research in recent years shows how right-wing populist and nationalist ideologies have used anti-renewable energy arguments to win voters, in defiance of environmental logic and scientific fact, in part by using social media to spread misleading and false information about wind, solar and other emissions-free electricity sources.

The same forces now seem to be at work in the U.S., said Stephan Lewandowsky, a cognitive psychologist at the University of Bristol who studies how people respond to misinformation and propaganda, and why people reject well-established scientific facts, such as those regarding climate change.

“This is a bonus for fossil fuels at the expense of future generations and the future of the American economy,” he said. “Other countries will continue working towards renewable-energy economies, especially China. That competitive advantage will eventually pay out to the detriment of American businesses. You can’t negotiate with the laws of physics.”

This story originally appeared on Inside Climate News.

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in-a-wild-time-for-copyright-law,-the-us-copyright-office-has-no-leader

In a wild time for copyright law, the US Copyright Office has no leader


Rudderless Copyright Office has taken on new prominence during the AI boom.

It’s a tumultuous time for copyright in the United States, with dozens of potentially economy-shaking AI copyright lawsuits winding through the courts. It’s also the most turbulent moment in the US Copyright Office’s history. Described as “sleepy” in the past, the Copyright Office has taken on new prominence during the AI boom, issuing key rulings about AI and copyright. It also hasn’t had a leader in more than a month.

In May, Copyright Register Shira Perlmutter was abruptly fired by email by the White House’s deputy director of personnel. Perlmutter is now suing the Trump administration, alleging that her firing was invalid; the government maintains that the executive branch has the authority to dismiss her. As the legality of the ouster is debated, the reality within the office is this: There’s effectively nobody in charge. And without a leader actually showing up at work, the Copyright Office is not totally business-as-usual; in fact, there’s debate over whether the copyright certificates it’s issuing could be challenged.

The firing followed a pattern. The USCO is part of the Library of Congress; Perlmutter had been appointed to her role by Librarian of Congress Carla Hayden. A few days before Perlmutter’s dismissal, Hayden, who had been in her role since 2016, was also fired by the White House via email. The White House appointed Deputy Attorney General Todd Blanche, who had previously served as President Trump’s defense attorney, as the new acting Librarian of Congress.

Two days after Pelmutter’s firing, Justice Department official Paul Perkins showed up at the Copyright Office, along with his colleague Brian Nieves. According to an affidavit from Perlmutter, they were carrying “printed versions of emails” from Blanche indicating that they had been appointed to new roles within the Copyright Office. Perkins, the email said, was designated as Acting Register of Copyrights. In other words, he was Perlmutter’s replacement.

But was Blanche actually the acting Librarian, and thus able to appoint Perkins as such? Within the Library of Congress, someone else had already assumed the role—Robert Newlen, Hayden’s former second-in-command, who has worked at the LOC since the 1970s. Following Hayden’s ouster, Newlen emailed LOC staff asserting that he was the acting Librarian—never mentioning Blanche—and noting that “Congress is engaged with the White House” on how to proceed.

In her lawsuit, Perlmutter argues that only the Librarian of Congress can fire and appoint a new Register. In a filing on Tuesday, defendants argued that the president does indeed have the authority to fire and appoint the Librarian of Congress and that his appointees then have the ability to choose a new Copyright Register.

Neither the Department of Justice nor the White House responded to requests for comment on this issue; the Library of Congress declined to comment.

Perkins and Nieves did not enter the USCO office or assume the roles they purported to fill the day they showed up. And since they left, sources within the Library of Congress tell WIRED, they have never returned, nor have they assumed any of the duties associated with the roles. These sources say that Congress is in talks with the White House to reach an agreement over these personnel disputes.

A congressional aide familiar with the situation told WIRED that Blanche, Perkins, and Nieves had not shown up for work “because they don’t have jobs to show up to.” The aide continued: “As we’ve always maintained, the President has no authority to appoint them. Robert Newlen has always been the Acting Librarian of Congress.”

If talks are happening, they remain out of public view. But Perlmutter does have some members of Congress openly on her side. “The president has no authority to remove the Register of Copyrights. That power lies solely with the Librarian of Congress. I’m relieved that the situation at the Library and Copyright Office has stabilized following the administration’s unconstitutional attempt to seize control for the executive branch. I look forward to quickly resolving this matter in a bipartisan way,” Senator Alex Padilla tells WIRED in a statement.

In the meantime, the Copyright Office is in the odd position of attempting to carry on as though it wasn’t missing its head. Immediately after Perlmutter’s dismissal, the Copyright Office paused issuing registration certificates “out of an abundance of caution,” according to USCO spokesperson Lisa Berardi Marflak, who says the pause impacted around 20,000 registrations. It resumed activities on May 29 but is now sending out registration certificates with a blank spot where Perlmutter’s signature would ordinarily be.

This unusual change has prompted discussion amongst copyright experts as to whether the registrations are now more vulnerable to legal challenges. The Copyright Office maintains that they are valid: “There is no requirement that the Register’s signature must appear on registration certificates,” says Berardi Marflak.

In a motion related to Perlmutter’s lawsuit, though, she alleges that sending out the registrations without a signature opens them up to “challenges in litigation,” something outside copyright experts have also pointed out. “It’s true the law doesn’t explicitly require a signature,” IP lawyer Rachael Dickson says. “However, the law really explicitly says that it’s the Register of Copyright determining whether the material submitted for the application is copyrightable subject matter.”

Without anyone acting as Register, Dickson thinks it would be reasonable to argue that the statutory requirements are not being met. “If you take them completely out of the equation, you have a really big problem,” she says. “Litigators who are trying to challenge a copyright registration’s validity will jump on this.”

Perlmutter’s lawyers have argued that leaving the Copyright Office without an active boss will cause dysfunction beyond the registration certificate issue, as the Register performs a variety of tasks, from advising Congress on copyright to recertifying organizations like the Mechanical Licensing Collective, the nonprofit in charge of administering royalties for streaming and download music in the United States. Since the MLC’s certification is up right now, Perlmutter would ordinarily be moving forward with recertifying the organization; as her lawsuit notes, right now, the recertification process is not moving forward.

The MLC may not be as impacted by Perlmutter’s absence as the complaint suggests. A source close to the MLC told WIRED that the organization does indeed need to be recertified but that the law doesn’t require the recertification process to be completed within a specific time frame, so it will be able to continue operating as usual.

Still, there are other ways that the lack of a boss is a clear liability. The Copyright Claims Board, a three-person tribunal that resolves some copyright disputes, needs to replace one of its members this year, as a current board member, who did not reply to a request for comment, is leaving. The job posting is already live and says applications are being reviewed, but as the position is supposed to be appointed by the Librarian of Congress with the guidance of the Copyright Register, it’s unclear how exactly it will be filled. A source familiar at the Library of Congress tells WIRED that Newlen could make the appointment if necessary, but they “expect there to be some kind of greater resolution by then.”

As they wait for the resolution, it remains an especially inopportune time for a headless Copyright Office. Perlmutter was fired just days after the office released a hotly contested report on generative AI training and fair use. That report has already been heavily cited in a new class action lawsuit against AI tools Suno and Udio, even though it was technically a “prepublication” version and not finalized. But everyone looking to see what a final report will say—or what guidance the office will issue next—can only keep waiting.

This story originally appeared on wired.com.

Photo of WIRED

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apple-gives-eu-users-app-store-options-in-attempt-to-avoid-massive-fines

Apple gives EU users App Store options in attempt to avoid massive fines

Apple is changing its App Store policies in the EU in a last-minute attempt to avoid a series of escalating fines from Brussels.

The $3 trillion iPhone maker will allow developers in the bloc to offer apps designed for the iOS operating system in places other than Apple’s App Store, the company said.

Apple has been negotiating for two months with the European Commission after being fined €500 million for breaching the EU’s Digital Markets Act, the landmark legislation designed to curtail the power of Big Tech groups.

Throughout the process, Apple has accused the commission of moving the goalposts on what the company needs to do to comply with the EU’s digital rule book.

Apple announced the measures on Thursday, the deadline for the company to comply with the bloc’s rules in order to avoid new levies. The financial penalties can escalate over time and reach up to 5 percent of average daily worldwide revenue.

Still, an Apple spokesperson said that “the European Commission is requiring Apple to make a series of additional changes to the App Store. We disagree with this outcome and plan to appeal.”

In a reaction to the changes, a European Commission spokesperson said that “the commission will now assess these new business terms for DMA compliance.”

The spokesperson added that “the commission considers it particularly important to obtain the views of market operators and interested third parties before deciding on next steps.”

The decision on the new fines under the Digital Markets Act comes as Brussels and Washington near a July 9 deadline to agree on a trade deal.

The EU’s rules on Big Tech are a flashpoint between Brussels and US President Donald Trump. But commission leaders have indicated they would not change their rule book as a part of trade negotiations with the US.

© 2025 The Financial Times Ltd. All rights reserved. Not to be redistributed, copied, or modified in any way.

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Reddit CEO pledges site will remain “written by humans and voted on by humans”

Reddit is in an “arms race” to protect its devoted online communities from a surge in artificial intelligence-generated content, with the authenticity of its vast repository of human interaction increasingly valuable in training new AI-powered search tools.

Chief executive Steve Huffman told the Financial Times that Reddit had “20 years of conversation about everything,” leaving the company with a lucrative resource of personal interaction.

This has allowed it to strike multimillion dollar partnerships with Google and OpenAI to train their large language models on its content, as tech companies look for real-world data that can improve their generative AI products.

But Huffman said Reddit was now battling to ensure its users stay at the center of the social network. “Where the rest of the internet seems to be powered by or written by or summarized by AI, Reddit is distinctly human,” he said. “It’s the place you go when you want to hear from people, their lived experiences, their perspectives, their recommendations. Reddit is communities and human curation and conversation and authenticity.”

As Reddit becomes an increasingly important source for LLMs, advertisers are responding with what one agency chief described as a “massive migration” to the platform.

Multiple advertising and agency executives speaking during this month’s Cannes advertising festival told the FT that brands were increasingly exploring hosting a business account and posting content on Reddit to boost the likelihood of their ads appearing in the responses of generative AI chatbots.

However, Huffman warned against any company seeking to game the site with fake or AI-generated content, with plans to bring in strict verification checks to ensure that only humans can post to its forums.

“For 20 years, we’ve been fighting people who have wanted to be popular on Reddit,” he said. “We index very well into the search engines. If you want to show up in the search engines, you try to do well on Reddit, and now the LLMs, it’s the same thing. If you want to be in the LLMs, you can do it through Reddit.”

Reddit CEO pledges site will remain “written by humans and voted on by humans” Read More »

apple’s-push-to-take-over-the-dashboard-resisted-by-car-makers

Apple’s push to take over the dashboard resisted by car makers

Of the original 14 brands listed by Apple, Jaguar Land Rover said it was still evaluating the system, while Ford and Nissan along with its Infiniti brand said they had no information to share about future application.

According to a survey conducted by McKinsey in 2023, almost half the car buyers said they would not buy a vehicle that lacked Apple CarPlay or Android Auto, while 85 percent of car owners who have Apple CarPlay or a similar service preferred it over the auto group’s own built-in system.

Picture of infotainment system with CarPlay and Android Auto icons

Credit: Smith Collection/Gado/Getty Images

Many carmakers, including Mercedes-Benz, BMW, and Audi, have developed infotainment and operating systems, but they would continue to offer the option of using standard Apple CarPlay to meet consumer demand. Apple said customers were going to like CarPlay Ultra, and carmakers would ultimately respond to consumer demand.

BMW said it would integrate the existing Apple CarPlay with its new design, while Audi said its focus was to offer drivers “a customized and seamless digital experience,” so it would not use CarPlay Ultra, although the standard version was available on its vehicles.

While Volvo Cars said there were no plans to use CarPlay Ultra, its chief executive, Håkan Samuelsson, said carmakers should not try to compete on software with technology companies. “There are others who can do that better, and then we should offer that in our cars,” he said.

Aston Martin integrated Apple’s CarPlay Ultra with its newly developed infotainment system but stressed that the design inside the car remained “unmistakably” Aston Martin. The traditional physical dials were also available for those who do not want to use the touchscreen, it said.

People close to the carmaker said discussions with Apple in integrating CarPlay Ultra involved setting clear lines on data sharing from the start. The use of CarPlay Ultra did not entail additional sharing of vehicle data, which is stored inside Aston Martin’s own infotainment system and software. Apple also said vehicle data was not shared with the iPhone.

Graphic illustration by Ian Bott; additional reporting by Harry Dempsey in Tokyo.

© 2025 The Financial Times Ltd. All rights reserved. Not to be redistributed, copied, or modified in any way.

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uk-looking-to-loosen-google’s-control-of-its-search-engine

UK looking to loosen Google’s control of its search engine

Other conduct rules that the CMA is considering include requirements in how it ranks its search results and for Google’s distribution partners such as Apple to offer “choice screens” to help consumers switch more easily between search providers.

The CMA said Alphabet-owned Google’s dominance made the cost of search advertising “higher than would be expected” in a more competitive market.

Google on Tuesday slammed the proposals as “broad and unfocused” and said they could threaten the UK’s access to its latest products and services.

Oliver Bethell, Google’s senior director for competition, warned that “punitive regulations” could change how quickly Google launches new products in the UK.

“Proportionate, evidence-based regulation will be essential to preventing the CMA’s road map from becoming a roadblock to growth in the UK,” he added.

Bethell’s warning of the potential impact of any regulations on the wider UK economy comes after the government explicitly mandated the CMA to focus on supporting growth and investment while minimizing uncertainty for businesses.

Google said last year that it planned to invest $1 billion in a huge new data center just outside London.

The CMA’s probe comes after Google lost a pair of historic US antitrust cases over its dominance of search and its lucrative advertising business.

© 2025 The Financial Times Ltd. All rights reserved. Not to be redistributed, copied, or modified in any way.

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how-a-data-center-company-uses-stranded-renewable-energy

How a data center company uses stranded renewable energy

“Decisions around where data centers get built have shifted dramatically over the last six months, with access to power now playing the most significant role in location scouting,” Joshi said. “The grid can’t keep pace with AI demands, so the industry is taking control with onsite power generation.”

Soluna, like other data center developers looking to rely on renewable energy, buys the excess power from wind, hydro, and solar plants that they can’t sell to the grid. By the end of the year, Soluna will have three facilities totaling 123 megawatts of capacity in Kentucky and Texas and seven projects in the works with upwards of 800 total megawatts.

Belizaire and I talked about how in Texas, where I report from, there’s plenty of curtailed energy from wind and solar farms because of the region’s transmission capacity. In West Texas, other data center developers are also taking advantage of the unused wind energy, far from major load centers like Dallas and Houston, by co-locating their giant warehouses full of advanced computers and high-powered cooling systems with the excess energy.

One data center developer using curtailed renewable power in Texas is IREN. The firm owns and operates facilities optimized for Bitcoin mining and AI. It developed a 7.5-gigawatt facility in Childress and broke ground on a 1.4-gigawatt data center in Sweetwater.

IREN purchases power through the state grid’s wholesale market during periods of oversupply, said Kent Draper, the company’s chief commercial officer, and reduces its consumption when prices are high. It’s able to do that by turning off its computers and minimizing power demand from its data centers.

But curtailment is an issue all over the world, Belizaire said, from Oklahoma, North Dakota, South Dakota, California, and Arizona in the US, to Northern Ireland, Germany, Portugal, and Australia.

“Anywhere where you have large utility-scale renewable development that’s been built out, you’re going to find it,” Belizaire said.

In a March analysis, the US Energy Information Administration reported that solar and wind power curtailments are increasing in California. In 2024, the grid operator for most of California curtailed 3.4 million megawatt hours of utility-scale wind and solar output, a 29 percent increase from the amount of electricity curtailed in 2023.

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israel-tied-predatory-sparrow-hackers-are-waging-cyberwar-on-iran’s-financial-system

Israel-tied Predatory Sparrow hackers are waging cyberwar on Iran’s financial system

Elliptic also confirmed in its blog post about the attack that crypto tracing shows Nobitex does in fact have links with sanctioned IRGC operatives, Hamas, Yemen’s Houthi rebels, and the Palestinian Islamic Jihad group. “It’s also an act of sabotage, by attacking a financial institution that was pivotal in Iran’s use of cryptocurrency to evade sanctions,” Robinson says.

Predatory Sparrow has long been one of the most aggressive cyberwarfare-focused groups in the world. The hackers, who are widely believed to have links to Israel’s military or intelligence agencies, have for years targeted Iran with an intermittent barrage of carefully planned attacks on the country’s critical infrastructure. The group has targeted Iran’s railways with data-destroying attacks and twice disabled payment systems at thousands of Iranian gas stations, triggering nationwide fuel shortages. In 2022, it carried out perhaps the most physically destructive cyberattack in history, hijacking industrial control systems at the Khouzestan steel mill to cause a massive vat of molten steel to spill onto the floor, setting the plant on fire and nearly burning staff there alive, as shown in the group’s own video of the attack posted to its YouTube account.

Exactly why Predatory Sparrow has now turned its attention to Iran’s financial sector—whether because it sees those financial institutions as the most consequential or merely because its banks and crypto exchanges were vulnerable enough to offer a target of opportunity—remains unclear for now, says John Hultquist, chief analyst on Google’s threat intelligence group and a longtime tracker of Predatory Sparrow’s attacks. Almost any conflict, he notes, now includes cyberattacks from hacktivists or state-sponsored hackers. But the entry of Predatory Sparrow in particular into this war suggests there may yet be more to come, with serious consequences.

“This actor is very serious and very capable, and that’s what separates them from many of the operations that we’ll probably see in the coming weeks or months,” Hultquist says. “A lot of actors are going to make threats. This is one that can follow through on those threats.”

This story originally appeared on wired.com.

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