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Today — 27 January 2026Main stream

The type of carbs you eat may affect dementia risk

27 January 2026 at 06:41
Carbohydrates don’t just fuel the body—they may also influence how the brain ages. A large long-term study found that diets high in fast-acting carbs that rapidly raise blood sugar were linked to a higher risk of dementia. People who ate more low-glycemic foods like fruit, legumes, and whole grains had a noticeably lower risk of Alzheimer’s. The quality of carbs, not just the amount, appears to matter for brain health.

These common food preservatives may be linked to cancer

27 January 2026 at 06:58
A large French study tracking more than 100,000 people over a decade has found that higher consumption of certain food preservatives—commonly found in processed foods and drinks—is linked to a modestly higher cancer risk. While many preservatives showed no association, several widely used ones, including potassium sorbate, sulfites, sodium nitrite, and potassium nitrate, were tied to increased risks of overall cancer and specific types such as breast and prostate cancer.

A hidden magnetic order could unlock superconductivity

27 January 2026 at 04:39
Physicists have discovered that hidden magnetic order plays a key role in the pseudogap, a puzzling state of matter that appears just before certain materials become superconductors. Using an ultra-cold quantum simulator, the team found that even when magnetism seems disrupted, subtle and universal magnetic patterns persist beneath the surface. These patterns closely track the temperature at which the pseudogap forms, suggesting magnetism may help set the stage for superconductivity.

Obesity and high blood pressure may directly cause dementia

27 January 2026 at 04:18
A new genetic study suggests that obesity and high blood pressure may play a direct role in causing dementia, not just increasing the risk. By analyzing data from large populations in Denmark and the U.K., researchers found strong evidence that higher body weight can damage brain health over time, especially when it leads to elevated blood pressure. Much of the dementia risk appeared to be tied to vascular damage in the brain, which affects blood flow and cognitive function.

A dying star’s final breath glows in a new Webb image of the Helix Nebula

26 January 2026 at 13:32
Webb’s latest image of the Helix Nebula reveals a dramatic close-up of a dying star shedding its outer layers. The detailed view highlights glowing knots of gas shaped by fast-moving stellar winds colliding with older material. Changes in color trace a shift from scorching hot gas near the center to cooler regions farther out. The scene captures how stellar death helps supply the building blocks for future worlds.

Distant entangled atoms acting as one sensor deliver stunning precision

26 January 2026 at 13:26
Researchers have demonstrated that quantum entanglement can link atoms across space to improve measurement accuracy. By splitting an entangled group of atoms into separate clouds, they were able to measure electromagnetic fields more precisely than before. The technique takes advantage of quantum connections acting at a distance. It could enhance tools such as atomic clocks and gravity sensors.

Your fireplace may be doing more harm than you think

26 January 2026 at 13:03
Home fireplaces and wood stoves are quietly driving a large share of winter air pollution, even though only a small number of households rely on wood heat. Researchers found that wood smoke accounts for over one-fifth of Americans’ winter exposure to dangerous fine particles linked to heart disease and early death. Much of this pollution drifts into cities, where it disproportionately harms people of color. Reducing wood burning could deliver major public health benefits.

The magnetic secret inside steel finally explained

26 January 2026 at 16:57
For years, scientists noticed that magnetic fields could improve steel, but no one knew exactly why. New simulations reveal that magnetism changes how iron atoms behave, making it harder for carbon atoms to slip through the metal. This slows diffusion at the atomic level and alters steel’s internal structure. The insight could lead to more efficient, lower-energy ways to make stronger steel.

A hidden genetic war is unfolding inside your DNA

26 January 2026 at 15:35
Our genome isn’t as peaceful as it looks—some DNA elements are constantly trying to disrupt it. Scientists studying fruit flies discovered that key proteins protecting chromosome ends must evolve rapidly to counter these internal threats. When these proteins fall out of sync, chromosomes fuse and cells die. The work reveals how essential biological systems survive by constantly reinventing themselves.

A strange in-between state of matter is finally observed

26 January 2026 at 15:11
When materials become just one atom thick, melting no longer follows the familiar rules. Instead of jumping straight from solid to liquid, an unusual in-between state emerges, where atomic positions loosen like a liquid but still keep some solid-like order. Scientists at the University of Vienna have now captured this elusive “hexatic” phase in real time by filming an ultra-thin silver iodide crystal as it melted inside a protective graphene sandwich.

The early universe supercharged black hole growth

26 January 2026 at 14:40
Astronomers may have finally cracked one of the universe’s biggest mysteries: how black holes grew so enormous so fast after the Big Bang. New simulations show that early, chaotic galaxies created perfect conditions for small “baby” black holes to go on extreme growth spurts, devouring gas at astonishing rates. These feeding frenzies allowed modest black holes—once thought too puny to matter—to balloon into monsters tens of thousands of times the Sun’s mass.

A lost disease emerges from 5,500-year-old human remains

26 January 2026 at 11:04
A 5,500-year-old skeleton from Colombia has revealed the oldest known genome of the bacterium linked to syphilis and related diseases. The ancient strain doesn’t fit neatly into modern categories, hinting at a forgotten form that split off early in the pathogen’s evolution. This pushes the history of treponemal diseases in the Americas back by millennia and shows they were already diversifying long before written records.

Scientists just cracked the hidden rules of cancer evolution

26 January 2026 at 09:41
Cancer doesn’t evolve by pure chaos. Scientists have developed a powerful new method that reveals the hidden rules guiding how cancer cells gain and lose whole chromosomes—massive genetic shifts that help tumors grow, adapt, and survive treatment. By tracking thousands of individual cells over time, the approach shows which chromosome combinations give cancer an edge and why some tumors become especially resilient.

Volts community thread #26

26 January 2026 at 17:13

David’s Notes

1. 🧊 It feels odd to be going about normal daily life and doing normal work while a fascist federal government dismantles the post-war liberal order and masked federal thugs terrorize and kill people in the streets of US cities. I hope that everyone out there is, in whatever way they can, raising their voice in protest to all of this.

If you would like to help the people in Minnesota who are under federal occupation, you can find a directory of ways to do so here.

Protesters hold a vigil for Alex Pretti, the man fatally shot by federal immigration enforcement the previous day, in Minneapolis on January 25, 2026. (Photo by Arthur Maiorella/Anadolu via Getty Images)
Protesters hold a vigil for Alex Pretti, the man fatally shot by federal immigration enforcement the previous day, in Minneapolis on January 25, 2026. (Photo by Arthur Maiorella/Anadolu via Getty Images)

2. 🗳️ Followup on November’s balcony solar episode: California Sen. Scott Wiener (of YIMBY fame) just introduced legislation in support of balcony solar (as well as heat pumps), and according to Canary Media, there’s another dozen states with balcony solar on the docket:

Besides Utah and now California, legislatures in more than a dozen states want to unleash the tech: Hawaii, Illinois, Indiana, Maine, Maryland, Missouri, New Hampshire, New Jersey, New York, Pennsylvania, South Carolina, Vermont, Virginia, and Washington have all introduced bills, according to Cora Stryker, co-founder of plug-in solar nonprofit Bright Saver, which has been advising some states on their proposals. Based on conversations the organization has had with state representatives, Stryker said she expects a whopping half of U.S. states to introduce bills this year.

Pretty cool!

Still, while all of the movement on plug-in solar is welcome, it is no substitute for the more thorough permitting and interconnection reform that we discuss in an episode this coming Wednesday.

3. 🧀 The more things change …

4. 🎁 Hat tip to Jerry W for bringing PG&E's dynamic line rating pilot to my attention.

A Heimdall Power Neuron installed on a PG&E electric transmission line (photo credit)

My episode on grid-enhancing technologies came out two and a half years ago. This stuff has been used in other places for more than a decade. This is better than nothing, but … it’s time to move past pilots!

5. ✅ Community comment(s) of the month:

Making the electricity grid work like the internet — Lots of great chatter on this episode. Martin pointed out California’s over-the-fence exception:

It looks like New York also has private wire allowances, along with Minnesota, New Jersey, and Illinois. Still pretty restrictive, though.

Sen. Brian Schatz wants permitting reform, but not like this — Robert said it, not me:

From recent vacation: Palm Springs, CA, seen from Mt. San Jacinto State Park.

Monthly Thread — How It Works

This is your monthly opportunity to share! Use the comments section in this community thread to:

  • CLIMATE JOBS & OPPORTUNITIES: Share climate jobs/opportunities

  • SHARE WORK, ASK FOR HELP, FIND COLLABORATORS: Share your climate-related work, ask for help, or find collaborators

  • CLIMATE EVENTS & MEETUPS: Share climate-related events and meetups

  • EVERYTHING ELSE: Discuss David’s Notes or anything else climate-related

  • QUESTIONS: Ask a question to the community or for an upcoming bonus episode (anyone can ask a question but bonus episodes are a paid-sub-only perk). Don’t be afraid to answer one another’s questions!

🚨 To keep organized, please only “REPLY” directly under one of Sam’s headline comments. Anything inappropriate, spammy, etc may be deleted. Be nice! Check out our Community Guidelines.

Volts is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.

Toyota’s New EV Costs Over $5K More Than Its Subaru Twin, And We’re Not Sure Why

  • The 2026 Toyota bZ Woodland arrives soon for $45,300.
  • It costs thousands more than the similar Subaru Trailseeker.
  • Crossover has 375 hp and an estimated range of 260 miles.

Toyota has quietly announced pricing for the 2026 bZ Woodland will start at $45,300 before a $1,450 destination fee. That makes the model $10,400 more expensive than the smaller bZ and a whopping $5,305 pricier than the similar Subaru Trailseeker.

That’s a sizable difference, but the company is only offering the crossover-ified wagon in one well-equipped trim. However, customers can order an optional Premium Package. This stands in contrast to Subaru, which will offer the Trailseeker in three separate trims named Premium, Limited, and Touring.

More: Subaru’s New Trailseeker Costs $5,000 More Than The Outback

Toyota hasn’t published full specs yet, but the bZ Woodland will come equipped with LED lighting units and 18-inch alloy wheels. Buyers will also find a six-speaker audio system, a 14-inch infotainment system, and a wireless smartphone charger. Other highlights include ambient lighting and heated power fronts seats wrapped in SofTex upholstery.

They’re joined by the Toyota Safety Sense 3.0 suite of driver assistance systems. It includes a Pre-Collision System with Pedestrian Detection, Full-Speed Range Dynamic Radar Cruise Control, and Lane Tracing Assist. These features are accompanied by Automatic High Beams, Road Sign Assist, Proactive Driving Assist, and Lane Departure Alert with Steering Assist. Other safety systems include a Blind Spot Monitor with Rear Cross-Traffic Alert, a Panoramic View / Multi-Terrain Monitor, and Safe Exit Alert.

The bZ Woodland with the Premium Package costs $47,400 and adds a panoramic moonroof as well as a nine-speaker JBL premium audio system. Buyers will also find front radiant heaters as well as heated and ventilated front seats with a memory function on the driver’s side.

The Trailseeker Looks Like A Far Better Deal

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While we’re waiting for Toyota to share more details, the Trailseeker looks like a far better deal as the base model has much of the same equipment as the bZ Woodland. Furthermore, the $43,995 Trailseeker Limited seems to be better equipped as it has a hands-free power liftgate and larger 20-inch wheels. It also sports heated rear seats and a Harman Kardon premium audio system.

The $46,555 Trailseeker Touring compares favorably to the $47,400 bZ Woodland Premium as well as both have a panoramic glass roof, ventilated front seats, and radiant leg warmers. Subaru also throws in a gloss black hood decal and a digital rearview mirror.

A Shared Powertrain With 375 HP

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Both models ride on the e-TNGA platform and have a 74.7 kWh battery pack. The latter feeds a dual-motor all-wheel drive system developing a combined output of 375 hp (280 kW / 380 PS).

Toyota originally quoted a range of up to 260 miles (418 km), but Subaru pegs it at around 280 miles (451 km). The latter company also noted the Trailseeker accelerates from 0-60 mph (0-96 km/h) in 4.4 seconds, has a NACS port, and can get an 80% charge in as little as 28 minutes.

2026 Toyota bZ Woodland Pricing
ModelMSRP
bZ Woodland$45,300
bZ Woodland Premium$47,400
SWIPE

H/T to Car & Driver

Nissan’s Ariya Concept Can Add 14 Miles A Day, But Only If The Sun Plays Nice

  • Nissan has introduced a “solar‑powered” Ariya concept.
  • Its panels can provide up to 14.3 miles of range per day.
  • This could reduce charging frequency by up to 65 percent.

Cars spend a lot of time outside and that presents a big opportunity for electric vehicles equipped with solar panels. A number of automakers have explored the idea and Nissan is revisiting it with an Ariya concept.

Designed to celebrate Clean Energy Day, the crossover has photovoltaic panels on the hood, roof, and liftgate. These span a combined area of 40.9 square feet (3.8 square meters) and convert sunlight into DC power.

More: Nissan Turns Sunlight Into Free Miles With Its Smart EV Upgrade

This energy is fed into the Ariya’s battery pack and Nissan said real-world testing showed the panels can add up to 14.3 miles (23 km) of range on a sunny day. That might not sound like much, but the average American travels less than 40 miles (64 km) per day.

However, location matters a lot and the range can vary significantly. Nissan says year‑round averages could range from as little as 6.3 miles (10.2 km) per day in London to 13.2 miles (21.2 km) per day in Dubai. Even if you park in a garage, a two-hour drive on a sunny day could add up to 1.9 miles (3 km) of range.

While these aren’t life altering numbers, the automaker said the added range could enable drivers to reduce their charging frequency between 35 and 65 percent. The solar panels also help out in areas where charging infrastructure is limited.

The concept was created in partnership with Lightyear and Nissan’s Shunsuke Shigemoto said, “By exploring how vehicles can generate their own renewable energy, we are opening the door to new opportunities for customers – greater freedom, reduced charging dependency, and a cleaner future. This concept is not just a technical milestone; it’s a vision of how Nissan intends to lead the next phase of electric mobility.”

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Rivian Could Be About Steal One Of The Land Cruiser’s Best Features

  • A patent shows the R1S with split tailgate and opening glass.
  • Rivian may add more physical switches and dials to the cabin.
  • Spy shots confirm the upcoming R2 has a roll-down rear window.

Rivian introduced a wide range of updates to the R1S and R1T for the 2025 model year, focusing on improvements beneath the surface while keeping the exterior mostly untouched. But according to a newly discovered patent, the R1S might be in line for another tweak in the form of a revised tailgate featuring a glass section that opens on its own.

Read: Rivian Patents Removable Roof Panels For Its EVs

According to documents uncovered by Car&Driver, Rivian has patented a new tailgate design that appears to give the R1S the ability to open either the entire hatch or just the glass panel. It’s a setup familiar to anyone who’s used the Toyota Land Cruiser or the closely related Lexus GX. BMW’s 3-Series Touring wagon also offers a similar function.

 Rivian Could Be About Steal One Of The Land Cruiser’s Best Features

The Toyota 4Runner also has something similar, although its rear window can actually roll down just like a side window, rather than opening out as Rivian’s patent shows. It’s a useful feature, allowing you to retrieve or store items without having to open the entire tailgate.

Rivian’s patent drawings show that this independently opening glass would be integrated into the current R1S split tailgate. That means Rivian could add the new feature without altering the SUV’s distinctive two-part rear hatch, maintaining the utility and visual character of the original design.

Buttons and Dials Coming?

 Rivian Could Be About Steal One Of The Land Cruiser’s Best Features
USPTO

There may be more than just hardware updates in store. The same filing, as noted by Car&Driver,, shows an interior equipped with actual physical buttons and knobs, something the current R1S doesn’t offer. It’s possible these would supplement the screen-heavy layout with tactile controls for climate or audio settings, easing day-to-day usability.

The patent also hints at gesture-based controls, potentially including the now-common feature that lets drivers wave a foot under the rear bumper to pop the tailgate.

 Rivian Could Be About Steal One Of The Land Cruiser’s Best Features
The interior of the current Rivian R1S and R1T.

There’s no word on when the R1S, and perhaps the R1T too, could be updated for a second time, but it probably wouldn’t be at least for a couple of more years, particularly since Rivian has to focus on building the R2 and R3 models.

Interestingly, recent spy shots of the R2 revealed it will get a roll-down rear window just like the 4Runner, so Rivian is clearly thinking about improving practicality with its future models.

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USPTO

Tesla’s Trying To Sell The Cybertruck Somewhere You’d Never Worry About Gas

  • Tesla Cybertruck starts at $110,000 in the United Arab Emirates.
  • U.S. sales fell 48.1 percent to 20,237 units during 2025.
  • Elon Musk once predicted 500,000 annual Cybertruck sales.

Prior to launching the Tesla Cybertruck, Elon Musk suggested they could sell as many as 500,000 of them per year. However, as sales of the electric pickup never really picked up in the United States, Tesla has started selling the Cybertruck in more markets, the latest being the Middle East.

Earlier this month, the first Cybertrucks were delivered to customers in the United Arab Emirates (UAE). Roughly 60 units were handed over during a launch event held for the occasion.

Read: Tesla’s Running Out Of Cybertruck Buyers, So Musk’s Other Companies Are Buying It

While much of the early hype surrounding the electric truck has died down in the US, it’s a hot ticket in the Middle East, with many having already been imported into the region by enthusiastic buyers before Tesla made it official. Of course, the UAE and the broader Middle East remain relatively small markets and won’t help Tesla get anywhere near its early estimates for the Cybertruck.

As one of the world’s top oil producers, the UAE enjoys some of the lowest fuel prices globally, which makes electric vehicles a harder sell. With cheap gas and a strong car culture rooted in performance and presence, the appeal of a futuristic EV like the Cybertruck has more to do with novelty than necessity.

How Much Is a Cybertruck in Dubai?

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Tesla Europe & Middle East/Twitter

In the UAE, pricing starts at AED404,900 for the dual-motor variant, roughly $110,000. That’s significantly more than the $79,990 price tag in the U.S. The top-end tri-motor Cyberbeast comes in at AED454,900, or about $123,000, which represents a smaller markup over its American counterpart at $114,900.

American Sales Crater

Back in the U.S., sales of the Cybertruck tumbled in 2025. Tesla moved just 20,237 units, down 48.1 percent from the 38,965 sold in 2024, the vehicle’s first full year on the market. The final quarter was especially tough, with only 4,140 trucks delivered. That’s a 68.1 percent drop compared to the 12,991 units shifted in Q4 of the previous year.

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Jaguar Denies Its New EV Just Sprouted Tailpipes, But Not Everyone’s Convinced

  • Jaguar reportedly studying range-extender hybrids with new EVs.
  • Small petrol generator could boost EV range to over 600 miles.
  • Brand insists EV-only plan stands, with first model due in 2026.

Jaguar hit the reset button hard in preparation for an all-electric luxury future, but a fresh report claims JLR is backtracking before it’s even launched the first of its new-generation cars. Sources close to the company allege engineers are trying to figure out how to sneak a petrol engine back into the picture to offer a hybrid model alongside the EV. Jaguar officials, for their part, deny any change in direction.

The Brit luxury brand is exploring range-extender electric tech that use a small combustion engine purely as a generator, according to UK newspaper The Times. In a range-extender hybrid the car’s wheels are still driven by electric motors, but a small combustion units acts as a backup power source for long trips when charging stops feel like a chore.

Related: Not Even Jaguar’s Dealers Are Buying Its $130K EV Plan

The potential payoff is big. Insiders who spoke to The Times suggest total range could jump from around 435 miles (700 km) in pure EV form to as much as 684 miles (1,100 km). That would go a long way toward calming buyers who like the idea of electric but still get nervous about road trips that involve more than one coffee stop.

Engineering Headache

Adapting JLR’s new JEA EV platform wouldn’t be easy because of the battery placement, Auto News reports. But companies like Renault-Geely collab Horse Powertrain have already spotted a niche for providing combustion engines to convert EVs into hybrids, and Porsche is ICE-converting its electric 718 sports cars mid-development, so we don’t doubt it could be done if Jag throws enough time and money at the problem.

 Jaguar Denies Its New EV Just Sprouted Tailpipes, But Not Everyone’s Convinced

This possible pivot comes after Jaguar’s dramatic rebrand and EV-only relaunch plan raised more than a few eyebrows. The new marketing campaign ditched traditional logos, embraced abstract visuals and promised a boutique lineup of high end electric models starting with $130k four-door production version of the Type 00 concept due to be revealed this year. Two more EVs, including at least one SUV come later.

Luxury EV sales slump

At the same time, real world demand for expensive Western EVs has cooled, especially in the United States and China. Porsche, for example, has already admitted it is leaning back toward hybrids and combustion models after EV sales failed to meet expectations. Jaguar’s global sales ambitions suddenly look much harder in that context and some dealers say they’re skeptical about the whole EV strategy.

 Jaguar Denies Its New EV Just Sprouted Tailpipes, But Not Everyone’s Convinced

Range extenders are already gaining traction in China, where buyers appreciate the electric drive feel but still want the safety net of petrol backup. In Europe, though, they’re less common, and under current rules, they don’t count as zero emissions cars, so could only be legally sold until 2035.

“Not happening”

Jaguar officially says nothing has changed and that its future remains electric only, but we don’t believe for a minute that Jag isn’t both concerned by current EV trends, and at least investigating how to answer to them.

Read: Jaguar Thinks Its $180K EV Gamble Could Finally Ditch Its BMW Complex

“Plans to reinvent Jaguar as an electric-only luxury automotive brand are unchanged,” a Jaguar spokesperson told The Times. “We are looking forward to unveiling the first new electric Jaguar later this year.”

Separately, a senior source told Autocar that the report was “rubbish,” and that Jaguar’s EV-only relaunch would proceed exactly as planned.

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Jaguar

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