Ecological Overshoot

Discussion in 'Science and Technology' started by Ricter, Nov 23, 2021.

  1. gwb-trading

    gwb-trading


    Maybe modern fisherman simply suck at fishing.

    :D
     
    #361     May 3, 2023
  2. Cuddles

    Cuddles

     
    #362     May 4, 2023
  3. Ricter

    Ricter

    This is the evil ESG principles at work:

     
    #363     May 4, 2023
  4. gwb-trading

    gwb-trading

    Americans aren't feeling charged up to by an electric vehicle.

    Are EV sales declining? Electrifying the car market may be getting harder. Here's why
    https://www.usatoday.com/story/money/personalfinance/2023/05/08/ev-sales-2023-slowing/70188358007/

    Electrifying the car market may be getting more difficult, with the share of Americans who say they’re “very unlikely” to consider an EV for their next vehicle purchase growing in each of the first three months of the year, according to a new report.

    In March, 21% of new-vehicle shoppers said they were “very unlikely” to consider an EV, up from 18.9% in February and 17.8% in January, consumer analytics firm JD Power said in a monthly EV report. In contrast, the percentage of car shoppers who say they are “very likely” to consider an EV was 26.9% in March, largely flat this year.

    Persistent worries about charging infrastructure and vehicle pricing’s dampening enthusiasm, the report said. EV’s market share of all new-vehicle sales dropped to 7.3% in March, down from a record high of 8.5% in February but up from 2.6% in February 2020.

    (More at above url)
     
    #364     May 8, 2023
  5. Tsing Tao

    Tsing Tao

    Checking in on Germany.

    [​IMG]
     
    #365     May 11, 2023
  6. Ricter

    Ricter

    The long read
    Dismantling Sellafield: the epic task of shutting down a nuclear site

    Nothing is produced at Sellafield anymore. But making safe what is left behind is an almost unimaginably expensive and complex task that requires us to think not on a human timescale, but a planetary one

    by Samanth Subramanian

    If you take the cosmic view of Sellafield, the superannuated nuclear facility in north-west England, its story began long before the Earth took shape. About 9bn years ago, tens of thousands of giant stars ran out of fuel, collapsed upon themselves, and then exploded. The sheer force of these supernova detonations mashed together the matter in the stars’ cores, turning lighter elements like iron into heavier ones like uranium. Flung out by such explosions, trillions of tonnes of uranium traversed the cold universe and wound up near our slowly materialising solar system.

    And here, over roughly 20m years, the uranium and other bits of space dust and debris cohered to form our planet in such a way that the violent tectonics of the young Earth pushed the uranium not towards its hot core but up into the folds of its crust. Within reach, so to speak, of the humans who eventually came along circa 300,000BC, and who mined the uranium beginning in the 1500s, learned about its radioactivity in 1896 and started feeding it into their nuclear reactors 70-odd years ago, making electricity that could be relayed to their houses to run toasters and light up Christmas trees.

    Sellafield compels this kind of gaze into the abyss of deep time because it is a place where multiple time spans – some fleeting, some cosmic – drift in and out of view. Laid out over six square kilometres, Sellafield is like a small town, with nearly a thousand buildings, its own roads and even a rail siding – all owned by the government, and requiring security clearance to visit. Sellafield’s presence, at the end of a road on the Cumbrian coast, is almost hallucinatory. One moment you’re passing cows drowsing in pastures, with the sea winking just beyond. Then, having driven through a high-security gate, you’re surrounded by towering chimneys, pipework, chugging cooling plants, everything dressed in steampunk. The sun bounces off metal everywhere. In some spots, the air shakes with the noise of machinery. It feels like the most manmade place in the world.

    [​IMG]
    Dismantling Sellafield: the epic task of shutting down a nuclear site – podcast

    Since it began operating in 1950, Sellafield has had different duties. First it manufactured plutonium for nuclear weapons. Then it generated electricity for the National Grid, until 2003. It also carried out years of fuel reprocessing: extracting uranium and plutonium from nuclear fuel rods after they’d ended their life cycles. The very day before I visited Sellafield, in mid-July, the reprocessing came to an end as well. It was a historic occasion. From an operational nuclear facility, Sellafield turned into a full-time storage depot – but an uncanny, precarious one, filled with toxic nuclear waste that has to be kept contained at any cost.

    Nothing is produced at Sellafield any more. Which was just as well, because I’d gone to Sellafield not to observe how it lived but to understand how it is preparing for its end. Sellafield’s waste – spent fuel rods, scraps of metal, radioactive liquids, a miscellany of other debris – is parked in concrete silos, artificial ponds and sealed buildings. Some of these structures are growing, in the industry’s parlance, “intolerable”, atrophied by the sea air, radiation and time itself. If they degrade too much, waste will seep out of them, poisoning the Cumbrian soil and water.

    To prevent that disaster, the waste must be hauled out, the silos destroyed and the ponds filled in with soil and paved over. The salvaged waste will then be transferred to more secure buildings that will be erected on site. But even that will be only a provisional arrangement, lasting a few decades. Nuclear waste has no respect for human timespans. The best way to neutralise its threat is to move it into a subterranean vault, of the kind the UK plans to build later this century. Once interred, the waste will be left alone for tens of thousands of years, while its radioactivity cools. Dealing with all the radioactive waste left on site is a slow-motion race against time, which will last so long that even the grandchildren of those working on site will not see its end. The process will cost at least £121bn.

    More...
     
    #366     May 11, 2023
  7. Ricter

    Ricter

     
    #367     May 15, 2023
  8. Ricter

    Ricter

     
    #368     May 16, 2023
  9. gwb-trading

    gwb-trading

     
    #369     May 16, 2023
  10. Ricter

    Ricter

    The point about saving the planet is old-hat now. Yes yes, we all know the speck will continue to orbit the sun no matter what we do to the biosphere.
     
    #370     May 16, 2023