Besides we can still use that same land for crops with agrivoltaics

  • Sunsofold@lemmings.world
    link
    fedilink
    English
    arrow-up
    0
    ·
    14 days ago

    I’m all for electric, but this is, at best, a negation of the complaints that solar requires ‘too much space.’ In terms of an efficiency argument, this is not remotely appropriate, a girders to oranges comparison, if you will.

  • hector@lemmy.today
    link
    fedilink
    English
    arrow-up
    0
    ·
    13 days ago

    Biofuels are a scam. They get worse mileage, it takes as much energy to make as it produces, the pollution is worse, it leads to toxic chemicals from the agriculture being introduced into the environment, and it raises the price of food.

    • SaveTheTuaHawk@lemmy.ca
      link
      fedilink
      English
      arrow-up
      0
      ·
      13 days ago

      All those talking points are courtesy of gas and oil. Any farming means toxic chemicals, ethanols only take energy because renewable sources are not used for distillation, and no farming used for ethanol comes from food crops.

      Most of the corn grown in the US is not edible, it is grown to make oils, sugar and plastics.

      • hector@lemmy.today
        link
        fedilink
        English
        arrow-up
        0
        ·
        13 days ago

        It’s unfortunate the arguments are in favor of oil, but they are true, those aren’t arguments the oil companies made through their bullshit mercenary scientific outfits, those are from real studies that have been made and reported on by real scientists and do gooders over the decades. And reported in real publications, from newspapers, back when those still existed, to periodicals.

        The pesticides and fertilizers from corn are not something to slough off, it’s systematic pollution at this point, and they use more and worse chemicals for the stuff that’s not for human consumption.

        A good share of corn is used to make ethanol, I don’t doubt they use the leftovers from that to make plastics, that’s exactly the problem it drives food prices up taking away agricultural land by subsidizing inefficient fuel production, started during the Bush Administration by the way, the ultimate whores to big oil.

        Corn oil and syrup/sugar, is for human consumption, and included in what we call food. It’s also subsidized and driving bad outcomes but that’s another story. 5% of the continental united states is corn. 5% of the total land in the lower 48 is devoted to corn. Think about that. There is only one larger crop, grass. Worthless lawns, although Idk if that is measured in land coverage or weight of the product to be honest.

      • 3abas@lemmy.world
        link
        fedilink
        English
        arrow-up
        0
        ·
        13 days ago

        lol okay I get being suspicious of oil and gas bs, but some of what you said about ethanol is just not right…

        In the US most ethanol is made from corn. It’s usually field corn, not the kind you eat like corn on the cob, but it’s still part of the food system. It turns into animal feed and all the corn ingredients in processed food, so saying “no ethanol comes from food crops” doesn’t really hold up.

        Also yeah you could power the distillation with renewables, cool, but that doesn’t magically fix the bigger issues people point to: growing more corn usually means more fertilizer and more runoff and more land pressure. You know how much fertilizer corn takes?

        That’s not just “oil talking points,” that’s just what happens when you scale it… i’m not saying ethanol is pure evil or whatever, but dismissing the criticism as all oil propaganda is doing the same thing in reverse. It’s certainly not the climate justice solution they’ve sold it as.

  • mcv@lemmy.zip
    link
    fedilink
    English
    arrow-up
    0
    ·
    13 days ago

    It would probably use less water too. Crops require a lot of water, and biofuel crops more than most. I’ve heard it’s putting a massive drain on the available water in some places.

  • pedz@lemmy.ca
    link
    fedilink
    English
    arrow-up
    0
    ·
    13 days ago

    I hope this is only to put things in perspectives because cars suck for a multitude of other reasons, however we power them.

    We can use solar energy to move a box that weighs 1/2 tons around, for every individual on the planet. The cars will still shed microplastics. The cars will still require paved parking lots that are not permeable, worsening floods, and generate heat islands. The cars will still kill one or two billion animals every year. The cars will still kill about a million people worldwide every year; one every 30 seconds.

    It would be nice to have this energy used for something else than powering deadly inefficient cars.

  • porcoesphino@mander.xyz
    link
    fedilink
    English
    arrow-up
    0
    ·
    14 days ago

    It’s been great traveling the world and seeing more and more solar installations. There is a long tail for things like aviation and plenty of chemistry but the world is changing. It would be nice if less governments were voted in that were anti the transition but progress is still being made

  • Viking_Hippie@lemmy.dbzer0.com
    link
    fedilink
    English
    arrow-up
    0
    ·
    14 days ago

    The size of Germany, Poland, Finland, or Italy

    😄

    First, pretty weird to go with 4 examples

    Second, those 4 are of VASTLY different sizes by “my country isn’t one of the 5 largest in the world” standards. The difference in size between Germany and Italy is the equivalent of almost 150% of Denmark.

    Third, even IF those countries were roughly the same size, they’re of such disparate shapes that the comparison would STILL be pretty much useless as a reference point to most people.

  • ominous ocelot@leminal.space
    link
    fedilink
    English
    arrow-up
    0
    ·
    edit-2
    13 days ago

    What about the required raw materials to fabricate the solar panels? What about aging and recycling rate?

    I don’t say, abandon solar power. I say: improve the recycling rate of the panels. Dual use agricultural land, maybe try to take advantage of the panel’s properties for agricultural land use (shadows cast by the panels, wind erosion idk).

    And maybe evaluate where cars for personal transportation are really needed and how the fuel efficiency could be raised.

    Mass transportation complemented by bike and scooter rentals - it’s mostly an infrastructural change, which leads to reduced fuel consumption.

    Car sharing: One could aim to increase the frequency of use per vehicle - less cars to build, less space required for parking lots and streets.

    • hector@lemmy.today
      link
      fedilink
      English
      arrow-up
      0
      ·
      13 days ago

      It’s not an inefficient way to turn political donations into federal subsidies though, and that’s the real point of it. It’s horribly inefficient, worse pollution, worse mileage, takes as much energy to make as they get from it, leads to overuse of chemicals that get everywhere, and raises food prices.

      None of that matters a whit, because it turns donations to lawmakers into huge subsidies to agribusiness, the majority of which get claimed by the few remaining gatekeeping conglomerates in the agricultural sector.

  • Almacca@aussie.zone
    link
    fedilink
    English
    arrow-up
    0
    ·
    13 days ago

    How about putting that farmland back to producing food, and covering all our rooftops and carparks with solar panels?

    • Kkk2237pl@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      13 days ago

      Its even more efficient. In Poland we have that project, where food is grown under solar panels - they harvest even more than before, because panels protect plants from too much sun.

      • polotype@lemmy.ml
        link
        fedilink
        English
        arrow-up
        0
        ·
        13 days ago

        I second this, if you design your solar panels well, not only do you get to outpu a lot of electricity, yiu actually increase your crop/cattle etc yield

      • Almacca@aussie.zone
        link
        fedilink
        English
        arrow-up
        0
        ·
        12 days ago

        I don’t know about that, but we certainly need to waste less food, and removing the profit motive from it’s production might help getting it to the people that need it but can’t get it. There are still people in the world starving needlessly.

        • SippyCup@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          edit-2
          12 days ago

          We both grow more than we need, and throw more than we should away.

          Some of that is a result of picky shoppers wanting unblemished produce. Some of that is a result of not having an easy profit motivated way of getting produce from where it’s grown to where it’s most desperately needed.

          We have tropical fruit available all year, but when impoverished peoples experience a crop failure, best we can do is send powdered milk.

          Which incidentally may have cured them of lactose intolerance.

        • BoJackHorseman@lemmy.world
          link
          fedilink
          English
          arrow-up
          0
          ·
          12 days ago

          People are starving because capitalists would rather throw away perfectly good food and put bleach on it than give it to the starving to maximize their profits

      • Almacca@aussie.zone
        link
        fedilink
        English
        arrow-up
        0
        ·
        12 days ago

        It was a metaphor, no one is thinking of replacing farmland with solar panels.

        Fair point. It’s just the idea of using perfectly good farmland to fuel cars feels like a fucked up priority to me.

    • Gladaed@feddit.org
      link
      fedilink
      English
      arrow-up
      0
      ·
      13 days ago

      Farmland installs can be cheaper.

      If combined with farming it can protect yields but is more costly, but that’s another topic

    • innermachine@lemmy.world
      link
      fedilink
      English
      arrow-up
      0
      ·
      13 days ago

      Please. I used to live in RI and driving through ri and ma you will regularly see ACRE upon ACRE of woodland mowed down, flattened, and thousanda of gaudy panels put up in what was once public lands and wooded areas. They do this right outside of the Worcester city limits like they don’t have acre upon ACRE of already developed paved over areas that could benefit from shade from solar panels(think car parks, strap mall and dept store building roofs, residential roofs etc). I’m all for solar but I hate when they destroy nature for no reason. I’m not stupid I know it’s easier to build them on a level earth than on rooftops but we only have so much land available as it is why not be more efficient with the land we have already used?

    • shane@feddit.nl
      link
      fedilink
      English
      arrow-up
      0
      ·
      13 days ago

      Again, our proposal isn’t that we should cover all of this land in solar panels, or that it could easily power the world on its own. We don’t account for the fact that we’d need energy storage and other options to make sure that power is available where and when it’s needed (not just when the sun is shining). We’re just trying to get a sense of perspective for how much electricity could be produced by using that land in more efficient ways.

    • SaveTheTuaHawk@lemmy.ca
      link
      fedilink
      English
      arrow-up
      0
      ·
      13 days ago

      Now do iron and aluminum mine externalities for ICE cars, which carry hundreds of pounds extra of those metals, plus much rarer cataysts like platinum and rubidium. The business community keeps quoting one white paper written by Volvo on this, but of course, no one actually read that paper because the authors saw fit to exclude the metals used in engines and transmissions in ICE cars when comparing to EVs. There is so much bullshit math on both sides of this argument, no one is realizing how we are getting distracted from major sources of pollution that continue unfettered like shipping, air travel and cement production.