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Cake day: June 21st, 2023

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  • Fwiw mining and manufacturing isn’t as bad as some people want you to believe.

    About 40% of lithium comes from brine extraction. There’s a lot of lithium in the ground which are dissolved in brine - a super salty solution of minerals and water. They’re extracted by allowing the water to evaporate into the atmosphere and then retrieving the minerals from that.

    While that “wastes” a lot of water, none of that water was usable in the first place. It’s too salty for humans and would kill any plants or fish if used for crops or dumped respectively.

    Another 60% comes from normal hard rock mining. This is as environmentally friendly as most mining is.

    A small portion - about 2% - comes from clay mining. This is actually rather bad for the environment and results in a lot of atmospheric pollution. Fortunately, it’s a small shrinking portion of total mining.

    The other main minerals in li-ions are cobalt, manganese, and lithium.

    A large amount of cobalt comes from artisanal mining in the Congo. Artisanal is just a fancy term that means it’s not work being performed by a company at a dedicated mine, but on a small scale such as a single person digging an area and collecting it or a handful of people who run their own mine. Unfortunately, though, we know that slave and child labor are used at a large portion of these mines.

    Fortunately, there has been a large push to move to more sustainable mining practices. Some Congo miners have allowed outside observers to verify that all miners are adults working of their own volition.

    Other countries such as Cuba and Indonesia have begun mining cobalt and are also following minimum employment practices. As a side benefit, these mines are also the main sources for nickel which reduces the number of mines we need.

    Manganese is rather interesting. The current extraction process involves using natural gas to separate the components. However, there are nodules on the ocean floor which are rich in manganese. While these would produce less pollution to process, there are worries that removing the nodules would cause irreparable harm to the local environment.

    However, even if your batteries were mined in the most harmful method possible and your power comes from the dirtiest plant of all time, the long term emissions are still much better than driving the most fuel-efficient ICE over the same time period.


  • And while it’s a more minor issue, EVs are heavier than ICE vehicles in the same class, which causes more road wear and more tire wear (and more micro plastics to enter the environment).

    Easy solution is to move to Indiana. Our environment means that almost every day from November through April, the temperatures will be in the 30s-50s in the day and 10-20 at night, so the pavement is constantly cracking. Combine that with the lack of investment in infrastructure (Indy literally has a ban on new streetlights and stop lights going back to the 80s) and it doesn’t matter how heavy the car is, the pavement will be just as broken.












  • #2 and 3 don’t actually happen since it can’t be recorded on the P&L.

    The donation would get recorded to cash and offset to a liability account, probably something named Charitable Donations Payable likely with a subaccount for the specific programs.

    Overall, the effect is essentially the same, though. Fwiw, I like to use the same comparison as you did to show to people how dumb this belief is.

    The individual who donated at the register also is allowed to claim the donation when they file their taxes.



  • droans@lemmy.worldtomemes@lemmy.worldIt was so bright and helpful
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    2 months ago

    I knew Google started ignoring double quotes for required text years ago, but I found out yesterday that it doesn’t even think “site:xyz.com” needs to be followed.

    I was researching something and saw some Reddit posts. Clicked below it to view results from Reddit and a third of them were other websites.






  • If the slide has all the information, then it’s a poor slide deck.

    The slides are supposed to be an outline. The rule of thumb is max seven lines and max seven words per line.

    Here’s a couple examples.

    Good slide:

    • Revenue: -10% vs Estimate
    • Industry trends
    • Low demand for new products
    • Strong demand for XYZ

    Also good slide, depending on who you’re presenting to:

    • Revenue: -10% vs Estimate
    • Industry: -3%
    • New products: -30%
    • XYZ: +4%

    Bad slide:

    • Revenue is 10% below estimate
    • Industry has seen a 3% drop in sales
    • New products ABC and MNO have had a 30% lower demand than we expected
    • Product XYZ has higher demand than anticipated with sales 4% higher than estimate

    All the extra information on the bad slide can be delivered by the presenter. It’s not necessary on the slide. The slide is for people to glance at to assist them during and after the presentation and to help them anchor themselves in the discussion.