• humanspiral@lemmy.ca
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    18 hours ago

    1.2" by 2100 with no acceleration from global warming

    That is 0.3mm per year. Current annual sea rise is 4.5mm.

    The danger of twaites is sudden collapse/detachment, giving an immediate 2 foot rise. Mostly global sea rise from other sources is what can raise melt from glacier, and accelerate its time of detachment.

    For the first time in satellite history, 2022 to 2025 was 4 consecutive sub 2.5m km2 antarctic sea ice extents, and were closer to 2m km2 , 2026 was still below 2.6m km2 . Until now, global warming has not caused visible downtrends in Antarctic sea ice. year to year variation was in a narrow range with no noticeable trend.

    Twaites is a region that is subject regularly to blue water events every year. A trend for Antarctic that leads to longer and wider blue water areas on coastal lines is also a recipe for warmer water to interact with Twaites. Returning every year will accelerate the “doomsday glacier” event, in addition to exposing other regional glaciers who, previously to last 5 years, did not get consecutive blue water erosion, which meant recovery years/periods.

    Talking about Twaites as though, “if things stay the same, an insignificant number may double” is not the right way to be concerned about Twaites.

  • Fondots@lemmy.world
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    1 day ago

    I visited Iceland over the summer. In the Perlan science museum in Reykjavik they have a replica of a plaque that was installed at the site of the former glacier Okjökull. It reads, in English

    A letter to the future
    Ok is the first Icelandic glacier to lose its status as a glacier.
    In the next 200 years all our glaciers are expected to follow the same path.
    This monument is to acknowledge that we know what is happening and what needs to be done.
    Only you know if we did it.

    Followed by the global atmospheric CO2 reading for when it was installed in August 2019, which was 415ppm

    This year we reached 432ppm.

  • FlashMobOfOne@lemmy.world
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    1 day ago

    In early September I was watching my nephew play a high school football game in 107 degree heat, sitting with my very Republican brother. We’re both old enough to remember when triple-digit heat was, maybe, on or two odd days in the summer and not a weeks-long affair.

    We talked about how hot it was, and I told him I think that within 10-15 years, it’s no longer going to be possible to play football in September without a covered field. What’s wild is he agrees, and I fully expect in the coming decade to see a whole wave of bond drives so high schools can build some means of field coverage.

    I don’t think it’s deniable now that human-made climate change is killing the world we knew. Data centers are hastening it, but we’ve seen the travel industry collapse twice in the last 18 years and, in that time, observed precipitous drops in pollution.

    We know the solution. We’re just powerless because billionaires are the polluters and billionaires control the world’s governments.

  • brem@lemmy.world
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    2 days ago

    Oh, I guess I’m the only one who has seen all of the documentaries over 30+ years filmed from a helicopter with the pilot pointing out how alarmingly fast glaciers are receding as the camera person zooms in on bare rocks.

    Maybe I should be a famous fucking scientist, because the loudest ones are obviously being paid to ease panic.

    • Catoblepas@lemmy.blahaj.zone
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      1 day ago

      This was actually an interesting article about a model of glacier melt, taking into account how seawater was interacting with the rim of the glaciers to cause them to melt even faster than previously realized (which was already fast). Reframing this as ‘famous scientists’ (what famous scientist was involved with this??) downplaying global warming instead is a wild misrepresentation of everything they did.

      • brem@lemmy.world
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        1 day ago

        Brian Cox (the ex boy band member/ astrophysicist) off the top of my head.

        Atty represents nature and he’s been talking about it for waaaay longer than 30 years.

        Even the newest episode of Simon Reeve’s newest show (which was like two weeks ago) has him commenting on the very same thing I am referencing.

        I’m not downplaying anything, I’m using humour to express concern.

        Concern for a doomed planet, because the loudest and richest people can’t be fucked to care for anything but themselves.

        • BooBees@fedinsfw.app
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          1 day ago

          They’ll only care when their bunkers and golf resorts and yachts have all ceased to be respites for their debauchery and they can no longer move freely in ways that let them ignore it.

    • yeehaw@lemmy.ca
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      1 day ago

      What’s your name? I’ll make a wikipedianpahe on you. That should make you famous.

      • bedwyr@piefed.ca
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        1 day ago

        The fire is already started, the flood will take some time, ice doesn’t melt overnight.

      • brem@lemmy.world
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        1 day ago

        Next time though…

        It would appear that this time, if God or Gods exist; they or them have chosen for us to suffer our own consequences.

      • brem@lemmy.world
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        1 day ago

        Meteorite already happened

        I’ve seen enough remakes to last an entire cycle. Let’s see something new…

        Off the top of my head… Ummm… Words become food until the power goes out, and then food becomes food. The food runs out of food, and eventually nothing is food anymore, because the foods that are foods are no longer food. Because it’s just rocks now. But not meteorite rocks, just boring rocks. Maybe not boring rocks to a scientist, but who cares because they are dead too.