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Joined 9 months ago
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Cake day: September 29th, 2025

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  • This is what we do with spent fissile material

    Well, I can’t speak for other countries, but most of the nuclear waste generated in the USA has never reached any sort of permanent storage. Defense waste, from making nuclear weapons, is mostly stored in underground bunkers in two states.

    How and where is nuclear waste stored in the U.S.?

    Remnants of the chemical processing of radioactive material needed to manufacture nuclear weapons, often called “defense waste,” will eventually be melted along with glass, with the resulting material poured into stainless steel containers. These canisters are 10 feet tall and 2 feet in diameter, weighing approximately 5,000 pounds when filled.

    For now, though, most of it is stored in underground steel tanks, primarily at Hanford, Washington, and Savannah River, South Carolina, key sites in U.S. nuclear weapons development. At Savannah River, some of the waste has already been processed with glass, but much of it remains untreated.

    Waste from energy generation is almost all still stored above ground on site.

    After about five years, the fuel bundles are removed, dried and sealed in welded stainless steel canisters. These canisters are still radioactive and thermally hot, so they are stored outdoors in concrete vaults that sit on concrete pads, also on the power plant’s property. These vaults have vents to ensure air flows past the canisters to continue cooling them.

    As of December 2024, there were over 315,000 bundles of spent nuclear fuel rods in the U.S., and over 3,800 dry storage casks in concrete vaults above ground, located at current and former power plants across the country.

    Even reactors that have been decommissioned and demolished still have concrete vaults storing radioactive waste, which must be secured and maintained by the power company that owned the nuclear plant.

    A more permanent solution is likely years, or decades, away.

    Not only must a long-term site be geologically suitable to store nuclear waste for thousands of years, but it must also be politically palatable to the American people. In addition, there will be many challenges associated with transporting the waste, in its containers, by road or rail, from reactors across the country to wherever that permanent site ultimately is.

    Perhaps there will be a temporary site whose location passes muster with the Supreme Court. But in the meantime, the waste will stay where it is.



  • I wonder it favorable years are more common now, with global warming in full swing.

    It’s more a matter of luck and human stupidity. The adult screw-worms typically travel only about 10 miles looking for an animal to infect . One major cause of spread is infected animals (mostly deer and other wildlife) that travel long distances before succumbing to the infection so it comes down to how far infected animals carry the larva.

    • July 3, 2023: Panama declared a state of emergency. Just days later, Costa Rica followed suit.
    • By the end of 2024: Every Central American nation had identified cases of screwworm.
    • November 22, 2024: Screwworm larvae were discovered in a cow at the Mexico-Guatemala border crossing,
    • approximately 700 miles south of Texas.
    • July 9, 2025: A detection [was reported] in Veracruz, approximately 370 miles south of the US border.
    • September 21, 2025: [A screwworm case was reported in] Nuevo León, only 70 miles from Texas.

    Less than a year later we’ve detected a case about 50-70 miles into Texas. So from November 2024 to not quite the middle of 2026, about a year and a half, the parasite has spread from the southern Mexico border all the way into Texas.

    Now, there is one other major way the parasite spreads. If someone unknowingly ships an infected animal to another part of the country, it could leap thousands of miles in a very short time. In fact, cattle smuggling from Central American countries is one of the ways that screwworms spread across Mexico so quickly. I really expect the same to happen in the USA if it hasn’t already.








  • If you were to do that, the Goldilocks zone would move inward as the Sun’s energy output dropped. So all the life on Earth would still die because the Earth would freeze.

    Still, since you have the tech to remove mass from a star, you would also surely have the ability to move the earth inward to keep it in the Goldilocks zone. But that still might not work. Being so much closer to the Sun, the Earth’s magnetic field and atmosphere might not be sufficient to block flares and CMEs.


  • While they have similar life cycles, ending up as white dwarfs, red dwarfs are much less massive than our sun. Thus, our sun can’t turn into a red dwarf without somehow loosing a significant amount of mass.

    Alos, in the case of our sun, before it becomes a white dwarf, it will balloon up into a red giant and consume everything out to about the orbit of Earth. Any life on Earth at that time will be wiped out even if the planet itself doesn’t get dragged down into the sun.





  • Could be. OP’s article mentions Uber, but also mentions speculation that it may have been Amazon. Either way, I’m torn between laughing at corporate stupidity and crying over the enormous waste of resources consumed by the AI usage.

    Recently, Uber’s chief exec claimed there was no link between AI ‘tokenmaxxing’ and shipping useful products. It’s a phenomenon perhaps most keenly reported at Amazon (which some X users have speculated may be the mystery company in question), where employees are said to have been caught inflating AI token consumption to meet internal targets. In fact, a Financial Times report on Thursday indicates Amazon has scrapped its internal AI usage leaderboard to stop employees carrying out needless tasks in order to climb the league table.