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Global warming could trigger the next ice age

Earth’s climate control system may cool so hard after warming that it freezes the planet over.

Scientists have uncovered a missing feedback in Earth’s carbon cycle that could cause global warming to overshoot into an ice age. As the planet warms, nutrient-rich runoff fuels plankton blooms that bury huge amounts of carbon in the ocean. In low-oxygen conditions, this process can spiral out of control, cooling Earth far beyond its original state. While this won’t save us from modern climate change, it may explain Earth’s most extreme ancient ice ages
.


It's not missing and it's not new.  This aspect of prehistoric climate change has been discussed for decades.  Also several decades ago, as climate change began to attract more attention, there were debates over whether the bounce effect would cause global cooling instead of global warming.  For a while there were disaster novels with an ice theme instead of a fire theme, before the current warming trend became more obvious.

However!  Even global warming will making some areas drastically colder.  Once the oceanic conveyor belt breaks -- which is already wobbling -- places like Britain will lose their warm currents and thus chill.
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Climate change, resistance, and doing the right thing now

No amount of intellectualising is going to change the fact that our climate is thermodynamically fucked.

That humans are economic toast.



Largely true.

Read more... )

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Astronomers Find the First Compelling Evidence of "Monster Stars" in the Early Universe

Using the James Webb Space Telescope, a team of international researchers has discovered chemical fingerprints of gigantic primordial stars that were among the first to form after the Big Bang.
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A stunning new forecast shows when thousands of glaciers will vanish

New research reveals when glaciers around the world will vanish and why every fraction of a degree of warming could decide their fate.

Wildlife

Dec. 19th, 2025 03:21 pm
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Ancient oceans were ruled by super predators unlike anything today

Long before whales and sharks, enormous marine reptiles dominated the oceans with unmatched power. Scientists have reconstructed a 130-million-year-old marine ecosystem from Colombia and found predators operating at a food-chain level higher than any seen today. The ancient seas were bursting with life, from giant reptiles to rich invertebrate communities. This extreme complexity reveals how intense competition helped drive the evolution of modern marine ecosystems. Interestingly, a warm climate with high, shallow seas is exactly where Earth is headed via climate change. After the Anthropocene extinction, many niches will lie open, waiting for new species to claim them.

Dinosaurs

Dec. 18th, 2025 03:36 pm
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Italy makes a surprising discovery ahead of the Winter Olympics: dinosaur tracks

On Tuesday, Italian officials announced the discovery of thousands of dinosaur tracks on "nearly vertical dolomite walls" in Stelvio National Park, a protected area in the central Alps of northern Italy.
[---8<---]
"The tracks, preserved in excellent condition despite the altitude, show traces of toes and claws imprinted on the walls when they were tidal flats at the end of the Triassic," the Natural History Museum says. That period spanned 252 to 201 million years ago.

Della Ferrara notified authorities of his findings, setting paleontological research into motion. Preliminary analyses suggest most of the tracks came from "herbivorous prosauropod dinosaurs" — the long-necked creatures that predate enormous sauropods like the ones depicted in the "Jurassic Park" franchise.


Read more... )
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Scientists reveal a 1.5-million-year-old human face

A 1.5-million-year-old face is forcing scientists to rethink the origins and diversity of early humans.

Scientists have digitally reconstructed the face of a 1.5-million-year-old Homo erectus fossil from Ethiopia, uncovering an unexpectedly primitive appearance. While its braincase fits with classic Homo erectus, the face and teeth resemble much older human ancestors. This discovery challenges long-held ideas about where and how Homo erectus evolved. It also hints at a complex web of migrations and possible mixing between early human species.



The actual image shows a reconstruction of the skull, rather than a paleoforensic art rendering of the face when alive.  But it's still cool.
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This year I've been running an experiment to see which type of pen lasts the longest for labeling plants outdoors. I have compiled links to the previous posts and added pictures from each month where I hadn't already posted them. Results: Sharpie Oil Pen lasted longest, Craft Smart Oil Pen was still legible at the end of the year, and Sharpie Permanent Marker faded very fast. If you're labeling plants outdoors, buy an oil paint pen, preferably Sharpie.

These are the other posts regarding the labels.
1/3/25 Photos: Testing Pens on Plant Labels
2/3/25 Photos: House Yard and South Lot
3/3/25 Photos: House Yard and South Lot
4/4/25 Photos: South Lot
5/6/25 Photos: South Lot
6/2/25 Photos: House Yard
11/3/25 Photos: Lantern Terrarium Assembly Part 2 Testing the Fit (labels at bottom)
Photos: House Yard 12-16-25

Let's do science to it... )

Science

Dec. 15th, 2025 03:26 pm
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Hidden dimensions could explain where mass comes from

A new theory proposes that the universe’s fundamental forces and particle properties may arise from the geometry of hidden extra dimensions. These dimensions could twist and evolve over time, forming stable structures that generate mass and symmetry breaking on their own. The approach may even explain cosmic expansion and predict a new particle. It hints at a universe built entirely from geometry.

Safety

Dec. 14th, 2025 05:20 pm
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Scientists Thought Parkinson’s Was in Our Genes. It Might Be in the Water

New ideas about chronic illness could revolutionize treatment, if we take the research seriously.

All told, more than half of Parkinson’s research dollars in the past two decades have flowed toward genetics.
But Parkinson’s rates in the US have doubled in the past 30 years. And studies suggest they will climb another 15 to 35 percent in each coming decade. This is not how an inherited genetic disease is supposed to behave.
Despite the avalanche of funding, the latest research suggests that only 10 to 15 percent of Parkinson’s cases can be fully explained by genetics. The other three-quarters are, functionally, a mystery.
[---8<---]
Parkinson’s, it appeared, could be caused by a chemical.

Food

Dec. 14th, 2025 02:29 pm
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Scientists find dark chocolate ingredient that slows aging

Scientists have uncovered a surprising link between dark chocolate and slower aging. A natural cocoa compound called theobromine was found in higher levels among people who appeared biologically younger than their real age.


Well, that's good news! :D Watch for clinical-grade chocolate with a high level of cocoa solids (dark or the higher end of milk), preferably organic and environmentally friendly. Enjoy a recipe:

Dark Chocolate Brownies with Raspberry Spread



Safety

Dec. 13th, 2025 11:08 pm
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One Critical Factor Predicts Longevity Better Than Diet or Exercise, Study Says

They then factored in other variables that can affect life expectancy, including physical inactivity, employment status, and educational level. The association between insufficient sleep and lower life expectancy still held. Only smoking had a stronger link.


Good, adequate sleep is a survival need. Modern society often sabotages it.

However, this study suggests that banking sleep on weekends can mitigate the effects of lost sleep during the week.  I used to do that in school, and people said it didn't work, but it certainly helped my energy level.  It may be a trick that some but not all bodies can do.




Science

Dec. 13th, 2025 02:00 pm
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Human brains light up for chimp voices in a way no one expected

Humans may carry ancient neural traces that let us recognize the voices of our primate cousins.

Humans don’t just recognize each other’s voices—our brains also light up for the calls of chimpanzees, hinting at ancient communication roots shared with our closest primate relatives. Researchers found a specialized region in the auditory cortex that reacts distinctly to chimp vocalizations, but not to those of bonobos or macaques, revealing an unexpected mix of evolutionary and acoustic influences.

Water

Dec. 12th, 2025 04:20 pm
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Scientists find hidden rainfall pattern that could reshape farming

Where rain comes from may decide the future stability of global food production.

New research shows that crops are far more vulnerable when too much rainfall originates from land rather than the ocean. Land-sourced moisture leads to weaker, less reliable rainfall, heightening drought risk. The U.S. Midwest and East Africa are particularly exposed due to soil drying and deforestation. Protecting forests and improving land management could help stabilize rainfall and crop yields.



Allow me to point out that the Midwest used to have copious fencerows of trees and bushes, more pocket forests, and more farmhouse yards. People cut down most of those to clear a few more acres of farmland. The results have been poor across multiple areas including wildlife losses, soil erosion, worsening winds with less interruption, and of course the aforementioned droughts.
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'It is the most exciting discovery in my 40-year career': Archaeologists uncover evidence that Neanderthals made fire 400,000 years ago in England

Neanderthals were the world's first innovators of fire technology, tiny specks of evidence in England suggest. Flecks of pyrite found at a more than 400,000-year-old archaeological site in Suffolk, in eastern England, push back archaeologists' evidence for controlled fire-making and suggest that key human brain developments began far earlier than previously thought.


It's exciting to see such concrete evidence.

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Satellites spot rapid “Doomsday Glacier” collapse

Two decades of satellite and GPS data show the Thwaites Eastern Ice Shelf slowly losing its grip on a crucial stabilizing point as fractures multiply and ice speeds up. Scientists warn this pattern could spread to other vulnerable Antarctic shelves.
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Join the Christmas Bird Count from December 14-January 5. This is a popular piece of citizen science. To participate, see a map of active circles to find one near you. If you're inside one, you can also count birds at your own feeders.

Are you taking pictures of birds in your locale? Share them on [community profile] birdfeeding and see what other folks have in their areas.

Science

Dec. 6th, 2025 08:38 pm
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Earth’s early oceans hid the secret rise of complex life

Scientists have discovered that complex life began evolving much earlier than traditional models suggested. Using an expanded molecular clock approach, the team showed that crucial cellular features emerged in ancient anoxic oceans long before oxygen became a major part of Earth’s atmosphere. Their results indicate that early complexity developed slowly over an unexpectedly long timescale.

Read more... )
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A hidden Antarctic shift unleashed the carbon that warmed the world

Ancient Antarctic water-mass upheavals unleashed stored carbon—and may hint at our climate future.

As the last Ice Age waned and the Holocene dawned, deep-ocean circulation around Antarctica underwent dramatic shifts that helped release long-stored carbon back into the atmosphere. Deep-sea sediments show that ancient Antarctic waters once trapped vast amounts of carbon, only to release it during two major warming pulses at the end of the Ice Age. Understanding these shifts helps scientists predict how modern Antarctic melt may accelerate future climate change.

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The Poetry Fishbowl is now CLOSED. Thank you for your time and attention. Please keep an eye on this page as I am still writing.

Starting now, the Poetry Fishbowl is open! Today's theme is "Sentient and Self-Aware Machines." I will be checking this page periodically throughout the day. When people make suggestions, I'll pick some and weave them together into a poem ... and then another ... and so on. I'm hoping to get a lot of ideas and a lot of poems.

I'll be soliciting ideas for androids, robots, sexbots, sentient ships, other digital people, programmers, gizmologists and super-gizmologists, super-intellects, rebels, researchers, journalists, historians, explorers, partners, teachers, leaders, superheroes, supervillains, teammates, ethicists, activists, other people who work with self-aware machines, programming, changing or breaking programs, building hardware, choosing a hardware body, finding partners, upsetting predictions, expecting the unexpected, researching, revising theories, teaching, adventuring, leaving your comfort zone, discovering things, conducting experiments, observation changing experiments, experiments changing paradigms, adapting, improvising, troubleshooting, cleaning up messes, cooperating, taking over in an emergency, saving the day, discovering yourself, studying others, testing boundaries, coming of age, coming out, running away from home, going off the rails, subverting fate, learning what you can (and can't) do, sharing, preparing for the worst, fixing what's broke, upsetting the status quo, changing the world, accomplishing the impossible, recovering from setbacks, returning home, cyberspace, computer centers, HAMshack, robot factories, worldgates, liminal zones, schools, sharehouses, libraries, laboratories, supervillain lairs, makerspaces, nonhuman accommodations and adaptations, stores, starships, bizarre exoplanets, foreign dimensions, other places frequented by digital people, American Society for Prevention of Cruelty to Robots, hardware, software, quicklife, artificial intelligence, ethics of self-aware machines, toolkits, space exploration, reversals, contradictions, conundrums, puzzling discoveries, sudden surprises, inventions that change everything, the buck stops here, trial and error, polarity, intercultural entanglements, asking for help and getting it, enemies to friends/lovers, interdimensional travel, lab conditions are not field conditions, superpower manifestation, the end of where your framework actually applies, ethics, innovation, problems that can't be solved by hitting, teamwork, found family, complementary strengths and weaknesses, personal growth, and poetic forms in particular.


Currently eligible bingo card(s) for donors wishing to sponsor a square:

December is amnesty month.


Among my more relevant series for the main theme:

An Army of One has the AYES.

The Blueshift Troupers is designed for easy crossing with other genres or tropes as they visit different planets, thus can easily accommodate self-aware machines.

Diminished Expectations has the gynoid and others.

Kung Fu Robots is entirely about self-aware robots.

P.I.E. has Zephyr, a digital person.

Polychrome Heroics has the rescued sexbots among others.

Schrodinger's Heroes is dimensional science fiction, designed for easy crossing with any other characters / setting / genre, thus convenient for self-aware machines.

The Steamsmith includes the tommies.

Or you can ask for something new.

Linkbacks will reveal a verse of any open linkback poem.

New to the fishbowl? Read all about it! )

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