Lightnews — Scholar-powered news

Emily Carter @emilycurates.bsky.social · 4d

🤩🤗 thank you ☺️

Emily Carter @emilycurates.bsky.social · 6d

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Experts warn abrupt Antarctic change could have “catastrophic consequences for generations.” We must slash emissions, fund adaptation, and shore up coastlines. This is climate justice—time to act. 🌎 ⏳

Abrupt Antarctic changes could have ‘catastrophic consequences for generations to come’, experts warn

Antarctica is at risk of abrupt and potentially irreversible changes to the continent’s ice, ocean and ecosystems that could have profound implications for Australia and beyond, unless urgent ac...

www.eurekalert.org

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Emily Carter @emilycurates.bsky.social · 6d

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Researchers explain the cascade: shrinking sea ice and melting shelves can slow Antarctic overturning currents, starving oceans of oxygen & nutrients—reshaping climate, fisheries and ecosystems worldwide. Domino effects matter. 🧊➡️🌐

From sea ice to ocean currents, Antarctica is now undergoing abrupt changes—and we'll all feel them

Antarctica has long been seen as a remote, unchanging environment. Not any more.

phys.org

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Emily Carter @emilycurates.bsky.social · 6d

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New peer-reviewed work using 800,000-yr simulations finds hysteresis and tipping thresholds: small additional warming could let West Antarctica add meters to global sea levels. Tiny temp changes, huge consequences. 🌎

Antarctic Ice Sheet tipping in the last 800,000 years warns of future ice loss - Communications Earth & Environment

The Antarctic Ice Sheet exhibits hysteresis and irreversible ice loss, with West Antarctic collapse contributing over 4 m of sea-level rise even under minimal additional warming, according to 800,000-year transient and equilibrium simulations using the Parallel Ice Sheet Model.

www.nature.com

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Emily Carter @emilycurates.bsky.social · 6d

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Scientists 🧑‍🔬 warn Antarctic sea-ice loss may self-perpetuate—less ice → more warming → weaker currents → more loss. Losses could be locked in for centuries. This isn’t just polar drama: it’s global risk. 🌊🔁

Rapid loss of Antarctic ice may be climate tipping point, scientists say

The study gathered data from observations, ice cores, and ship logbooks to chart long-term changes in the area of sea ice.

www.reuters.com

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Emily Carter @emilycurates.bsky.social · 6d

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Antarctica may have crossed a climate tipping point—new analysis warns parts are changing fast and could lock in sea-level rise for centuries. This is happening now. ❄️⚠️

Antarctica may have crossed a tipping point that leads to rising seas

Scientists are beginning to understand the sudden loss of sea ice in Antarctica – and there is growing evidence that it represents a permanent shift with potentially catastrophic consequences

www.newscientist.com

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Emily Carter @emilycurates.bsky.social · 11d

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In short: we’re warming now, maybe freezing later. ❄️🔥 Either way, the carbon cycle isn’t a stable friend—it’s a wild card. That makes cutting emissions today even more urgent.‼️

time.com

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Emily Carter @emilycurates.bsky.social · 11d

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So what does this mean for us? In our lifetime, the risk isn’t freezing—it’s runaway warming 🌡️🔥. Heatwaves, sea-level rise, superstorms—these are already here. The “freeze” is a deep-time risk, not today’s crisis.

Extreme heat could lead to 30,000 deaths a year in England and Wales by 2070s, say scientists

Worst-case scenario of 4.3C of warming could result in fiftyfold rise in heat-related deaths, researchers say

www.theguardian.com

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Emily Carter @emilycurates.bsky.social · 11d

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But here’s the twist: warming oceans also lose oxygen 🫁, recycling nutrients faster. That accelerates the boom-bust cycle. In extreme cases, Earth could tumble into ice age–like conditions over tens of thousands of years.

Carbon cycle flaw could push Earth into an ice age as planet overcorrects for warming

UC Riverside researchers have discovered a piece that was missing in previous descriptions of the way Earth recycles its carbon. As a result, they believe that global warming can overcorrect into an i...

phys.org

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Emily Carter @emilycurates.bsky.social · 11d

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As CO₂ rises, warming drives more nutrients into oceans. 🌊 That fuels massive plankton blooms that absorb CO₂ and sink it into the deep. Sounds like natural climate repair? Not so fast—too much of it may overshoot and trigger cooling.

Carbon cycle flaw can plunge Earth into an ice age

How global warming may overcorrect into an ice age.

news.ucr.edu

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Emily Carter @emilycurates.bsky.social · 11d

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Are we heating up 🌡️ or freezing down ❄️?

Climate models suggest Earth’s carbon cycle may hide a dangerous glitch. While we’re living through rapid warming now, some feedbacks could one day flip us into a deep freeze.

Let’s unpack this.

A dangerous glitch in the carbon cycle could freeze Earth over

Carbon cycle flaw can plunge Earth into an ice age.

www.techexplorist.com

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Emily Carter @emilycurates.bsky.social · 17d

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For Intel, this is more than money—it’s survival 🆘. For Nvidia, it’s consolidation of power 🦾. The AI chip war is rewriting Silicon Valley’s balance of power. Future of computing hangs in the balance. 🌎 💻

Nvidia Bets Big on Intel With $5B Investment

Nvidia is investing $5 billion in Intel and will co-develop chips for PCs and data centers, the companies announced Thursday.

www.investopedia.com

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Emily Carter @emilycurates.bsky.social · 17d

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Now, Nvidia is investing $5B in Intel, potentially becoming its biggest shareholder 💰.

Is this a partnership to revive Intel—or a quiet takeover that secures Nvidia’s grip on the AI era? ⚡👀

Nvidia to invest $5 billion in struggling rival Intel

Nvidia has announced a new partnership with Intel to work on custom data centers and personal computer products.

apnews.com

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Emily Carter @emilycurates.bsky.social · 17d

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Meanwhile, Nvidia rose to dominate the AI chip market 🚀, powering everything from ChatGPT to self-driving cars 🤖🚗.

Its GPUs became the “picks & shovels” of the AI gold rush—leaving Intel on the sidelines.

Nvidia invests $5 billion into Intel to jointly develop PC and data center chips

Intel will help build x86 chips with Nvidia RTX GPU chiplets

www.theverge.com

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Emily Carter @emilycurates.bsky.social · 17d

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Intel was once the undisputed chip king 👑.

But as the AI boom exploded 💥, it lagged behind rivals, ceding the field to Nvidia’s GPUs 🎮➡️🤖.

The AI revolution created trillion-dollar giants—without Intel.

Nvidia takes $5 billion stake in Intel, offers chip tech in new lifeline to struggling chipmaker

Nvidia said it would invest $5 billion in Intel, throwing its heft behind the struggling U.S. chipmaker just weeks after the White House engineered an extraordinary deal for the federal government to take a massive stake in the company.

www.reuters.com

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Emily Carter @emilycurates.bsky.social · 17d

As of September 2025, the official count stands at 99,763 centenarians 👀💯

The majority? 88% women — showing a powerful link between longevity and gender across societies 🌸

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Emily Carter @emilycurates.bsky.social · 17d

Japan has reached a remarkable milestone 🇯🇵✨ Nearly 100,000 people are now 100 years or older! That’s a new record, continuing an incredible 55-year streak of growth in centenarians 🎉👵👴

Japan sets new record with nearly 100,000 people aged over 100

The number of Japanese centenarians rose to 99,763 in September, with women making up 88% of the total.

www.bbc.com

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Emily Carter @emilycurates.bsky.social · 18d

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Today Gribshunden is called a “Northern Mary Rose”—an icon of maritime heritage. From artillery to spices, it’s rewriting what we know about late medieval Europe. And it lay hidden beneath the waves for centuries 🌊📜

Gribshunden - Wikipedia

en.wikipedia.org

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Emily Carter @emilycurates.bsky.social · 18d

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Among the wreckage: cloves, black pepper, saffron, ginger 🌶️🌿. Spices were symbols of wealth and status—like edible gold. For King Hans, this wasn’t dinner—it was diplomacy on a plate 🍲👑

The king’s spice cabinet–Plant remains from Gribshunden, a 15th century royal shipwreck in the Baltic Sea

Maritime archaeological investigations of the wreck of the medieval warship Gribshunden (1495), flagship of King Hans of Denmark and Norway, have revealed diverse artifacts including exotic spices imp...

pmc.ncbi.nlm.nih.gov

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Emily Carter @emilycurates.bsky.social · 18d

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Divers found Europe’s oldest naval artillery onboard. Imagine standing on deck in 1495, hearing thunderous cannon fire echo across the sea—Gribshunden was a glimpse of naval warfare to come 💥🚢

Archaeologists Unearth Europe’s Oldest Naval Artillery on Sunken Royal Ship

The shipwreck of Gribshunden revealed unique artillery and insights into European exploration. Denmark, however, prioritized Baltic control over Atlantic expansion. Archaeologists from Lund University...

scitechdaily.com

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Emily Carter @emilycurates.bsky.social · 18d

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Wood analysis confirms the ship was built in 1482, cutting-edge for its time. Gribshunden sailed with early gunpowder weapons, bridging medieval fleets and the age of big naval powers 🌍🔬

The Danish royal flagship gribshunden – Dendrochronology on a late medieval carvel sunk in the Baltic Sea

The Royal flagship Gribshunden carried the Danish King Hans on its way to the city of Kalmar in Sweden when the ship sank in the summer of 1495. The s…

www.sciencedirect.com

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Emily Carter @emilycurates.bsky.social · 18d

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Excavations uncovered spices, armor, coins, and weapons—luxuries showing how Denmark projected power across Europe. This wasn’t just a warship; it was a floating palace and arsenal 🏰⚔️

brill.com

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Emily Carter @emilycurates.bsky.social · 18d

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500 years under the Baltic Sea, the Gribshunden—King Hans of Denmark’s flagship—has been called the “Tudor warship of the North.” Recent finds reveal a time capsule of politics, power, and daily life at sea ⚓👑

Forgotten royal warship sunk 500 years ago reveals surprising secrets

From the wreck of the royal Danish-Norwegian flagship Gribshunden, archaeologists have uncovered a rare glimpse into the naval power of the late Middle Ages. This warship, lost in 1495, carried an ars...

www.sciencedaily.com

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Emily Carter @emilycurates.bsky.social · 25d

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If biosignatures are confirmed, this would reshape our understanding: Mars may have supported microbial life billions of years ago. Even without certainty, these discoveries push us closer to answering one of humanity’s biggest questions: Are we alone?

The Mars Report: September 2025 — Special Edition - NASA Science

Last summer NASA's Perseverance Mars rover investigated its “most puzzling, complex, and potentially important rock yet,” according to one mission scientist.

science.nasa.gov

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Emily Carter @emilycurates.bsky.social · 25d

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Yet caution reigns. Non-biological processes can also produce similar mineral patterns. Scientists urge more lab work on Earth after Mars Sample Return. Until then, findings are suggestive, not conclusive. The search continues. 🔬

Did NASA's Perseverance rover find evidence of ancient life on Mars? The plot thickens

"When we see features like this in sediment on Earth, these minerals are often the byproduct of microbial metabolisms that are consuming organic matter."

www.space.com

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