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New carbon capture method uses water and pressure to remove CO₂ from emissions at half current costs

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New carbon capture method uses water and pressure to remove CO₂ from emissions at half current costs


Credit: Unsplash/CC0 Public Domain

A new, low-cost method for capturing carbon dioxide emissions from power plants and industrial facilities relies on a simple physical phenomenon—the same one that causes bubbles to fizz when popping a bottle of Champagne or cracking open a bottle of seltzer.

The process, called pressure-induced (PICC), uses water and pressure to pull carbon dioxide out of before it reaches the atmosphere, offering a cleaner and far less expensive alternative to traditional chemical methods.

Co-inventors Dr. Mark Holtzapple, professor of chemical engineering at Texas A&M University, and Jonathan Feinstein of ExcelThermic Enterprises have filed patents for licensing the technology to , hydrogen facilities, cement kilns, steel blast furnaces and other industrial emitters worldwide. Holtzapple said PICC is a practical solution to an urgent problem because fossil fuel combustion—which releases into the atmosphere—remains an important component of the global energy mix.

“Our invention is a cost-effective way to address one of the greatest challenges facing humanity,” Holtzapple said. “We can capture carbon dioxide from flue gas using only water and pressure, which makes the process simple, clean and less expensive than competing technologies.”

Traditional carbon capture systems rely on strong chemicals called amines that bind with carbon dioxide to remove it from exhaust gases. Amines struggle to pull more than 90% of the carbon dioxide out of the flue gas, Holtzapple said. Also, the amines are expensive and degrade when exposed to flue gases. Furthermore, permitting 10% of the carbon dioxide to escape into the environment is no longer tenable, he said.

In contrast, PICC uses physical absorption. Because PICC uses no chemical bonds, carbon dioxide pops back out of the water at reduced pressures just as easily as it dissolves in water at high pressure.

“Everybody knows that high-pressure carbon dioxide dissolves in water, and that when you open a bottle of Coca-Cola or beer you see that carbon dioxide bubble back out,” Holtzapple said. Once released, the carbon dioxide can be safely stored or utilized.

How the system works

In operation, from combusting coal, or biomass—like forest waste, crop residues or municipal solid waste—is first cooled and compressed. The gas is then piped into an absorption column, where flows downward while the gas moves upward through a structured packing that maximizes contact between the two streams. As the nearly clean gas reaches the top of the column, it contacts entering at the top. There, the last traces of carbon dioxide dissolve into the water, with clean gas releasing into the environment.

The water exiting the bottom of the column contains dissolved carbon dioxide and is transferred to a series of vessels, each operating at lower and lower pressures, where the carbon dioxide progressively bubbles out. Holtzapple said the released carbon dioxide is then ready for compression and injection into underground geological formations, such as saline aquifers, where it is permanently stored.

A lower cost path to near-total capture

Economic analyses show that PICC can capture and compress 99% of for $26 per metric ton. Other current technologies capture about 90% and cost $50 to $100 per metric ton, Holtzapple said.

Additionally, by adding a small amount of lime—an alkali—to the water, PICC captures 100% of carbon dioxide for an average cost less than $28 per metric ton. At that level of capture, even the carbon dioxide from the combustion air is removed, Holtzapple said.

“Without adding carbon dioxide to the atmosphere, PICC allows us to use abundant fossil fuels on which our civilization is built. Furthermore, by coupling PICC to biomass combustion, we can remove carbon dioxide from the atmosphere cost effectively,” he said.

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New carbon capture method uses water and pressure to remove CO₂ from emissions at half current costs (2025, November 15)
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DHS Opens a Billion-Dollar Tab With Palantir

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DHS Opens a Billion-Dollar Tab With Palantir


The Department of Homeland Security struck a $1 billion purchasing agreement with Palantir last week, further reinforcing the software company’s role in the federal agency that oversees the nation’s immigration enforcement.

According to contracting documents published last week, the blanket purchase agreement (BPA) awarded “is to provide Palantir commercial software licenses, maintenance, and implementation services department wide.” The agreement simplifies how DHS buys software from Palantir, allowing DHS agencies like Customs and Border Protection (CBP) and Immigration and Customs Enforcement (ICE) to essentially skip the competitive bidding process for new purchases of up to $1 billion in products and services from the company.

Palantir did not immediately respond to a request for comment.

Palantir announced the agreement internally on Friday. It comes as the company is struggling to address growing tensions among staff over its relationship with DHS and ICE. After Minneapolis nurse Alex Pretti was shot and killed in January, Palantir staffers flooded company Slack channels demanding information on how the tech they build empowers US immigration enforcement. Since then, the company has updated its internal wiki, offering few unreported details about its work with ICE, and Palantir CEO Alex Karp recorded a video for employees where he attempted to justify the company’s immigration work, as WIRED reported last week. Throughout a nearly hourlong conversation with Courtney Bowman, Palantir’s global director of privacy and civil liberties engineering, Karp failed to address direct questions about how the company’s tech powers ICE. Instead, he said workers could sign nondisclosure agreements for more detailed information.

Akash Jain, Palantir’s chief technology officer and president of Palantir US Government Partners, which works with US government agencies, acknowledged these concerns in the email announcing the company’s new agreement with DHS. “I recognize that this comes at a time of increased concern, both externally and internally, around our existing work with ICE,” Jain wrote. “While we don’t normally send out updates on new contract vehicles, in this moment it felt especially important to provide context to help inform your understanding of what this means—and what it doesn’t. There will be opportunities we run toward, and others we decline—that discipline is part of what has earned us DHS’s trust.”

In the Friday email, Jain suggests that the five-year agreement could allow the company to expand its reach across DHS into agencies like the US Secret Service (USSS), Federal Emergency Management Administration (FEMA), Transportation Security Administration (TSA), and the Cybersecurity and Infrastructure Security Agency (CISA).

Jain also argued that Palantir’s software could strengthen protections for US citizens. “These protections help enable accountability through strict controls and auditing capabilities, and support adherence to constitutional protections, especially the Fourth Amendment,” Jain wrote. (Palantir’s critics have argued that the company’s tools create a massive surveillance dragnet, which could ultimately harm civil liberties.)

Over the last year, Palantir’s work with ICE has grown tremendously. Last April, WIRED reported that ICE paid Palantir $30 million to build “ImmigrationOS,” which would provide “near real-time visibility” on immigrants self-deporting from the US. Since then, it’s been reported that the company has also developed a new tool called Enhanced Leads Identification & Targeting for Enforcement (ELITE) which creates maps of potential deportation targets, pulling data from DHS and the Department of Health and Human Services (HHS).

Closing his Friday email to staff, Jain suggested that staffers curious about the new DHS agreement come work on it themselves. “As Palantirians, the best way to understand the work is to engage on the work directly. If you are interested in helping shape and deliver the next chapter of Palantir’s work across DHS, please reach out,” Jain wrote to employees, who are sometimes referred to internally as fictional creatures from The Lord of the Rings. “There will be a massive need for committed hobbits to turn this momentum into mission outcomes.”



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PromptSpy Android malware may exploit Gemini AI | Computer Weekly

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PromptSpy Android malware may exploit Gemini AI | Computer Weekly


An Android-specific malware targeting mobile device takeover appears to use generative AI (GenAI) services in its execution flows to maintain persistence on the victim’s smartphone, researchers at ESET have reported.

The raison d’être of the newly-discovered PromptSpy malware is to deploy and run a virtual network computing (VNC) module on the victim’s device, enabling attackers to capture lockscreen data, gather device information, take screenshots and record activity, and block uninstallation.

But to do so it must first establish persistence on the device, and it is here that GenAI comes into play, said the ESET team. They claimed that PromptSpy uses the onboard Google Gemini service to interpret onscreen elements and provide it with dynamic instructions on how to execute a specific gesture that will enable it to remain in the device’s recent app list. This, in theory, stops it being easily swiped away by the user or killed by the system.

ESET researcher Lukáš Štefanko said that while GenAI plays only a minor role in PromptSpy’s execution flow it could have a significant impact on the malware’s potential adaptability.

“Since Android malware often relies on UI-based navigation, leveraging generative AI enables threat actors to adapt to more or less any device, layout, or operation system version, which can greatly increase the pool of potential victims,” he said.

“Even though PromptSpy uses Gemini in just one of its features, it still demonstrates how implementing these tools can make malware more dynamic, giving threat actors ways to automate actions that would normally be more difficult with traditional scripting.”

Štefanko said that based on localisation clues and distribution vectors, PromptSpy seems to be run by a financially-motivated threat actor, exploits Morgan Chase branding, and may primarily target users in Argentina.

However, he also stressed that the malware has not yet popped up in ESET’s wider telemetry, which may suggest it is a proof of concept (PoC) at this point in time. Nor has it been observed on the Google Play store – it can only be downloaded by a dedicated website that its victims would need to be conned into visiting.

Computer Weekly understands that Štefanko’s discovery has been shared with Google via the App Defense Alliance programme, and Android users should already be automatically protected against known versions of it by the Google Play Protect service.

In the unlikely event that PromptSpy has somehow infected their device, victims can remove it by rebooting their phone into Safe Mode, which disables third-party applications and enables them to be uninstalled normally.

GenAI malwares. Hype or threat?

PromptSpy is not the first alleged malware exploiting GenAI to have been surfaced by the ESET team, which last year also discovered a ransomware – named PromptLock – which ran a locally accessible AI language model to autonomously plan, adapt and execute a ransomware attack.

PromptLock turned out to be the fruit of a research project conducted by a team of PhD and post-doctoral researchers  at New York University’s (NYU’s) Tandon School of Engineering – specifically to illustrate the potential dangers of AI malwares.

Other supposed AI malwares found so far include FruitShell, which included GenAI promps to bypass detection and analysis, PromptSteal or Lamehug, a data miner linked to Russian state activity that queried a GenAI model to generate commands for execution via the Hugging Face API, and QuietVault, a credential stealer targeting GitHub and NPM tokens. Details on these malwares were published by the Google Threat Intelligence Group (GTIG) in November 2025.

However, their discovery has prompted widespread debate as to exactly how much of a threat such malwares really are, with some researchers arguing that the industry is overblowing their significance.



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If You’re Building a Home Gym, Start With Dumbbells and a Yoga Mat

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If You’re Building a Home Gym, Start With Dumbbells and a Yoga Mat


To join or not to join a gym: That is the question. If you opt out of building a home gym, you can join a club and have access to more weights and machines. Friends and classes motivate you to keep coming, and that monthly bill keeps you disciplined. On the other hand, gym memberships are steep, workouts can get hijacked by bullies, and going to the gym is an additional commute.

My gym tardiness, however, will likely catch up to me. One of the most consistent messages from health and fitness experts today is that lifting weights has immeasurable benefits. Strength training allows us to keep doing the things we love well into our advanced years. It reduces blood sugar, lowers blood pressure, burns calories, and reduces inflammation. A recent review of studies in the British Journal of Sports Medicine by Harvard Medical School found that strength training is linked to lower risk for cardiovascular disease, diabetes, and cancer and provides a 10 to 17 percent lower overall risk of early death.

But you don’t need all the time and money in the world to have a great home gym. Reviews editor Adrienne So and I have been slowly adding to our existing, minimalist home gyms in our living rooms and garage—a roughly 10- by 10-foot patch in our basements and living rooms. There’s a ton of equipment out there, but for maximum results, I asked two physical therapists—Grace Fenske at Excel North Physical Therapy and Performance and Samuel Hayden at Limit Less Physical Therapy—for their recommendations.

Here’s a PT-recommended guide for an ultrasimple setup that will keep you pumped and motivated. Don’t see anything you like? Don’t forget to check out our existing guides to the Best Running Shoes, the Best Fitness Trackers, or the Best Walking Pads.

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Adjustable Dumbbells

Yes, these are very pricey. But people outgrow their small dumbbells very quickly, and if you bite the bullet early, adjustable dumbbells take up a lot less space than individual dumbbell or kettlebell sets. The Nüobell adjustable dumbbells required 38 patents and allow users to increase weight in increments of five pounds all the way up to 80 with a twist of the handle. Each dumbbell set replaces 32 individual dumbbells. In a cramped space, that’s a game changer.

The way that both Steph’s Nüobells and my Nike adjustable dumbbells work is that the full barbell fits into a cradle. (You can also mount the barbells in a stand.) When the user twists the handle to five pounds, the aluminum bar with grooves will grab onto the first hollowed-out plate, which is 2.5 pounds on each side of the barbell. With each subsequent turn of the handle the bar will pick up heavier weight in increments of five pounds. A safety hook at the bottom of the cradle ensures the barbell weight must be locked in place before lifting.

I like my Nike dumbbells because the end of the dumbbell is flat, which means I can rest it on its end on my thigh without putting a divot in my leg. Also, the plates aren’t round. If you have a big round dumbbell on the floor, or especially in your garage, it will find the nearest incline and roll away on top of a house pet or child. You can still take individual plates out of the rack if you need them for leverage under your heel or for mobility exercises. Whichever one you choose, though, both Steph and I recommend getting a floor stand to decrease strain on your back. —Adrienne So



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