• I Cast Fist@programming.dev
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    23 minutes ago

    Somewhat related: Jason’s myth of the Golden Fleece takes him to the east of the Black Sea. It’s very likely that, around the time that the Sahara was green, it was possible to make a boat trip from the Black Sea to the Caspian Sea and from there to the northern part of Afghanistan, what was once Bactria, following the Amu Darya (Oxus) river.

    Another related tidbit: there may be several prehistoric settlements that are now under the sea, due to rising sea levels in some areas. Underwater archaeology is a lot more challenging than doing it in firm, dry soil, thus findings tend to be rarer and more difficult to preserve.

  • Balinares@pawb.social
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    17 hours ago

    That’s a very, very short time for such a major change. Makes me wonder what currently green ecosystems we take for granted a bit too easily.

    But it also makes me wonder whether a reversal is within human reach. To start with, cheap solar potentially enables desalinization and irrigation at unprecedented scales… What a nice thing to feel optimistic about, if nothing else.

    • iocase@lemmy.zip
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      15 hours ago

      Chinese solar farms in their deserts suddenly went green due to the constant shade protecting rain water, plus the water from the automated cleaning spray systems. It grew grass, so they put goats there to keep it mowed for free.

  • Zephyr@sh.itjust.works
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    18 hours ago

    How was the Amazon? From my understanding it gets a substantial amount of benefit from the sands of the Sahara currently.

    • boonhet@sopuli.xyz
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      17 hours ago

      Wait what?

      Did you confuse rivers (Amazon vs Nile) or do the sands of Sahara literally affect ecosystems on another continent?

      • gnu@lemmy.zip
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        16 hours ago

        Dust from the Sahara blows across over to the Amazon, enough of the stuff makes it across to be a factor when it comes to nutrient supply for the rainforest.

      • Zephyr@sh.itjust.works
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        16 hours ago

        The second one. The sands of the Sahara are vital to the Amazon rainforest. They blow all the way to the Amazon and deposit phosphorus which would totally get washed away without that deposit. The surface of the earth is hyper connected. You only experience yourself as a separate being from the rest of nature just because of the limited awareness we have, not because we are actually independent.

        • boonhet@sopuli.xyz
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          16 hours ago

          Pretty cool.

          To be fair, I’ve never seen myself as separate from nature, just separate from nature on another literal continent, it boggles the mind that sand can reliably and consistently travel that far.

    • captainlezbian@lemmy.world
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      17 hours ago

      Egypt was, but also the Sahara was very dry by the founding of Rome. It’s looking like 1600 BCE for early settlements in the area that the city of Rome is now in, meanwhile the latest I’m seeing for desertification is 2100 BCE.

      This difference in time is akin to claiming that Henry VIII had an air force. The Roman Empire is early ADs, so it’s closer to claiming Julius Caesar had nukes

      Carthage was in coastal north Africa and is still pretty green. There are expensive suburbs on it these days.

    • Deebster@infosec.pub
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      1 day ago

      There’s an ancient lakebed in Chad that supplies dust that blows across the Atlantic and delivers phosphorus to Amazon rainforests - phosphorus that is needed to support plant growth. Those long-dead organisms are still in the food chain. Life uuh finds a way.

      • Soggy@lemmy.world
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        19 hours ago

        This is the kind of stuff the “don’t tell me what to do with my land” crowd doesn’t know or care about. Everything affects everything on this planet.

  • Hegar@fedia.io
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    2 days ago

    Green Sahara/Desert Sahara is a cycle that happens.

    I’ve heard people try to claim the garden of eden is a memory of the green sahara, but that’s not provable.

    I also heard it has an effect on animal evolution - the desert acts as a wall, seperating north and south, then goes green and the two regions’ life mingle and compete for a while until it desertification seperates them to evolve independantly of each other until the next green phase.

    • UnderpantsWeevil@lemmy.world
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      18 hours ago

      I’ve heard people try to claim the garden of eden is a memory of the green sahara, but that’s not provable.

      Early civilizations were routinely centered around lush green river valleys, with political strife forcing dissidents out into the dry and sterile periphery. So, I wouldn’t say it’s a memory of a green Sahara so much as a cycle of cultivation and degradation that has informed human storytelling for millennia.

      “Eden” could just as easily be the Indus Valley in modern-day Pakistan. Or the Fertile Crescent of Iraq/Iran. Or the Göbekli Tepe of southeast Turkiye. Or the Nile Delta. Or the modern-day Gaza Strip. Or the rich soils along the slopes of Mount Kenya. Or the bountiful soil of Ukraine. Or yadda yadda yadda.

      Maybe all of these places, with migrating peoples constantly looking for the next Promised Land of Fruit and Honey, settling for a time, and being uprooted again.

      • Hegar@fedia.io
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        13 hours ago

        Yeah for sure, that’s all possible. Or eden could just be an idealized dream of an agricultural society and not a historical memory at all.

    • UltraMagnus0001@lemmy.world
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      1 day ago

      Something about the wobble of the earth’s axis shifting every once in a while. Also the poles can switch too and our sun does it way more often.

    • mirshafie@europe.pub
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      2 days ago

      That’s pretty cool. I’ve heard the idea that the Garden of Eden is where the Persian Gulf is now. It supposedly had incredibly rich soil and an immense supply of fresh water until the glaciers over Europe melted and eventually flooded the area.

  • birdwing@lemmy.blahaj.zone
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    2 days ago

    Imagine if human civilisation got to modern day’s level back then. I wonder what the climate change deniers would say about the desertification…