• 0 Posts
  • 23 Comments
Joined 1 year ago
cake
Cake day: July 16th, 2023

help-circle






  • Same could have been said about electricity not that long ago. Now that renewables are building steam the switch to electricity is revealed as perfectly logical, why not the same for hydrogen?

    Hydrogen is a harder sell, thanks to the poorer density, cost of storage, and the poor efficiency of production. But given the variable production of renewables all but guarantees we’ll end up with vast amounts of excess power we can’t store, we will need a fuel we can make from electricity that we can use, and hydrogen is one of the contenders for that task. Whether it’ll be the winner is more doubtful, but something will be, we certainly will never build enough batteries to avoid giving away cheap power for things like this, and there are still things that benefit from higher density fuels that aren’t going away (planes). Accusing people of being “worse than deniers” just because they’re looking a little into the future and betting on something that might turn out to be Betamax is a little presumptuous.

    Hydrogen today is a fossil fuel. But hydrogen has a very obvious method of green production, the only problem is cost of power to produce it (thus why it’s all fossil fuels right now) but the inevitability of variable power sources like solar and wind in the future guarantees excesses of cheap power, so cost of power today is not going to be the same barrier tomorrow that it is today.

    As for the fossil fuel industries plan to use hydrogen to maintain business as usual in a post fossil fuels era, I really don’t care if they manage to use their machines as long as they stop using fossil fuels, so that’s fine with me.

    Edit: to be clear, I’m not supporting a hydrogen based economy, since that makes no sense, hydrogen is a storage medium for energy, not a production source. There have been people pushing it as a magical solution to all things, that is stupid. As a small piece of the puzzle it could fit, if we don’t find a better chemistry for high density storage of energy with simple conversion from electricity, which is as yet an unsolved problem.





  • scratchee@feddit.uk
    cake
    toScience Memes@mander.xyzJAPANESE KNOTWEED
    link
    fedilink
    English
    arrow-up
    40
    ·
    8 months ago

    Try doing that in Iceland. They’re both very aware and conflicted about invasive species up there. Lupin is invasive and covering the country and also building soil from nothing, Pine trees are invasive and the quickest way to get treecover that is desperately needed.

    Makes for weird discussions, I guess Iceland is such and extreme case that nobody really knows if they should be saving the ecosystem it had managed to scratch together before we turned up or if they should be trying to rush a healthier ecosystem with imports (Iceland was pretty thin and fragile even before humans and we wrecked what little there was)








  • Disagree, they were pointlessly rude to a confused patient. The patient may have been in the wrong place, and they started strong with trying to guide them, but the later comments were just lashing out and trying to hurt.

    Stating falsehoods is not a requirement for being “problematic”. Indeed, it’s ridiculously easy to reach any offensive ideology you want without having to stray from factual statements.

    That’s not to say it’s all his fault, it sounds like a messy case where everyone involved screwed up.


  • scratchee@feddit.uk
    cake
    toAsklemmy@lemmy.mlA Judicial "Trolley Problem"
    link
    fedilink
    arrow-up
    4
    ·
    edit-2
    11 months ago

    The answer is dependent on context I think.

    In a universe where the whole future of the world is laid out before you and you can choose 1 death or many deaths, then sure, pick the greater good.

    The weakness of simplistic “greater good” automatic arguments is that in a real universe it opens you up to manipulation.

    In the end, there’s no avoiding thinking through the incentives from all perspectives. And that indeed suggests not giving in to the rioters, to protect the integrity of the entire legal system and reduce the risk that every trial becomes a show trial dictated by whoever has the biggest mob.