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Comment on Why Toyota Is Intentionally "Falling Behind" On EVs | Morning Brew (10:10)

Why not hybrid or plain ICE vehicles powered by biofuels? Even things like waste vegetable oil can be turned into viable fuel, and it can actually be less environmentally destructive than getting rid of it in other ways. ICE technology is very mature, and we currently produce more food than we need and waste much of it. Why not put it all to some use?

Pretty much any fat could be used in compression ignition engines with the right treatment, any carbohydrates turned into ethanol for spark ignition engines, and all waste wood burned for electric power and domestic heating.

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Oddbin@lemm.ee ⁨6⁩ ⁨months⁩ ago
Biofuels are even less efficient than making hydrogen for a fuel cell. It’s the same as growing cattle for a burger. It’s way less efficient an energy source because you have to grow up to 10 x more feed for the cow than you get out of the burger. You’re better using that land to grow the actual food for you. Same for biofuel. You get relatively little out for the shit tonne of land you need. Still use chemicals which all need energy to make and transport and use. Then you’ve got to cut, transport, process, refine, transport and then use the fuel. Much better to use the land for food or hell, just leave it to be wild and soak up carbon. Then all that energy you were going to use to make the bio fuel, stick it in a battery.

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- areyouevenreal@lemm.ee ⁨6⁩ ⁨months⁩ ago
  You’re forgetting things like used vegetable oil which is waste that would be thrown away otherwise. Same for the stuff wood pellets are made from, they are typically mostly saw dust and other waste products. This should hopefully cover airplanes and maybe diesel trains and some cars for when electric isn’t practical.
  
  Even if you were to start planting crops for biofuels, how much less efficient than solar plus batteries would it be? The problem with solar and especially battery storage is that the materials used to make them are not renewable, and cause all kinds of issues in their mining and manufacturing. We’ve grown plants sustainably for thousands of years now. I’ve yet to see anyone make a solar panel from sustainable or recycled materials.
  
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  - Oddbin@lemm.ee ⁨6⁩ ⁨months⁩ ago
    Right, let’s start with old oil. How much do you think is generated world wide? It’s about 1/20th of the amount of oil we use currently and that created not recycled so that number is far lower so really that’s a niche. Likewise wood pellets. Unless you’re actively chopping trees down to make into pellets you’re not going to have any real volume there. Plus as I said previously, all of that takes energy to be made into usable fuel. Where does that energy come from and also why not just use that energy directly?
    
    As for the last paragraph, no, sorry you’re just misunderstanding that whole arena. Batteries are more than 90% recyclable and that number is going up as we design them to be easier to recycle. Plus that’s most likely 20 years from now on average. As for solar panels they’re aluminium (easily recycled) glass (easily recycled) metals (easily recycled) and silicon (mostly recyclable) and again they’re being designed to be recycled better than they were. Ontop of that they now last up to 40 years with greater than 90% of their original capacity left so basically they’ll outlive most of us on here.
    
    We’ve grown plants sustainable for thousands of years except for in the last 150 where we have systematically wrecked the ecology at the same time as massively increasing our population. The average westerner uses 32 times more resources than the average Kenyan. Do you want to have the same lifestyle as they have? Because they want what westerners have so that means we can’t keep going as we are and have to change.
    
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    areyouevenreal@lemm.ee ⁨6⁩ ⁨months⁩ ago
    
    Right, let’s start with old oil. How much do you think is generated world wide? It’s about 1/20th of the amount of oil we use currently and that created not recycled so that number is far lower so really that’s a niche. Likewise wood pellets. Unless you’re actively chopping trees down to make into pellets you’re not going to have any real volume there. Plus as I said previously, all of that takes energy to be made into usable fuel. Where does that energy come from and also why not just use that energy directly?
    
    5% of our current oil demand is still a big improvement. That’s probably enough to move a significant portion or even all of aviation to sustainable fuels. Aviation is one of the places where batteries don’t work yet, and probably not anytime soon either.
    
    As for the last paragraph, no, sorry you’re just misunderstanding that whole arena. Batteries are more than 90% recyclable and that number is going up as we design them to be easier to recycle. Plus that’s most likely 20 years from now on average. As for solar panels they’re aluminium (easily recycled) glass (easily recycled) metals (easily recycled) and silicon (mostly recyclable) and again they’re being designed to be recycled better than they were. Ontop of that they now last up to 40 years with greater than 90% of their original capacity left so basically they’ll outlive most of us on here.
    
    Can you give me some evidence?
    
    We’ve grown plants sustainable for thousands of years except for in the last 150 where we have systematically wrecked the ecology at the same time as massively increasing our population. The average westerner uses 32 times more resources than the average Kenyan. Do you want to have the same lifestyle as they have? Because they want what westerners have so that means we can’t keep going as we are and have to change.
    
    So you’re saying sustainable agriculture is impossible? If so then climate change is inevitable and there is nothing we can do.
    
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