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It's not just an opinion, it's a physical reality. We only have the Earth's worth of biomass that we can use. And unlike former Twitter CEO's pipe dream we aren
by ponorin 3y ago
It's not just an opinion, it's a physical reality. We only have the Earth's worth of biomass that we can use. And unlike former Twitter CEO's pipe dream we aren't anywhere near being able to venture into an exoplanet, and attempting to do so is hurting the environment yet again. About the only reason we're not changing course is because most nations on this planet currently subscribe to an ideology devised in the colonial age by some european dudes.
- mattnewton 3y agoI don’t buy this argument, it sounds too much like the malthusians explaining there wasn’t enough arable land to support the population before nitrogen fertilizer was invented. I’m not saying we have a “fertilizer for energy” around the corner, but I also wouldn’t rule it out and start asking people to stop building.
- falcolas 3y agoIronically, we’re getting our fertilizer from the same place we get most of our fuel: exhaustible caches in the ground. They may never run out, but they will only go up in price, raising the price of food.
- defrost 3y agoAhhh, not exactly - we get our fertilizer from the air actually - it's the enormous energy draw required that causes us to use fossil fuels from the ground. That massive carbon footprint exists because although the Haber-Bosch process represents a huge technological advancement, it’s always been an energy-hungry one. The reaction, which runs at temperatures around 500 °C and at pressures up to about 20 MPa, sucks up about 1% of the world’s total energy production. https://cen.acs.org/environment/green-chemistry/Industrial-ammonia-production-emits-CO2/97/i24 https://cen.acs.org/environment/green-chemistry/Industrial-a... Here in my state we're looking hard at mass production (global scale numbers) of 'green' ammonia. https://fortescue.com/what-we-do/green-energy-research/green-ammonia https://fortescue.com/what-we-do/green-energy-research/green...
- rendang 3y agoWe get our N that way, not our K and P
- defrost 3y agoPotash salts (for Potassium (K)) are relatively adundant in the crust and if pressed can always be recovered from organics in the traditional manner. High-grade phosphate rock (for Phosphorus (P)) is the declining resource, or perhaps more accurately isn't matched by our ever increasing demand for it in fertilizers as our human population grows. For now at least we're coasting along on increased beneficiation of lower grade ore through washing, flotation and calcining. It's a fair point - I'm personally in the "let's see fewer humans overall camp", I'm not advocating genocide, just in favour of birth rates continuing to decline until we're back between (say) 4 to 6 billion. Unlimited growth in a petri dish has obvious issues, even if the dish is the surface of a relatively large sphere.
- MagicMoonlight 3y agoWe do, it's called nuclear power. We could have had unlimited power for effectively no cost if we'd just spammed reactors but we didn't.
- ChatGTP 3y agoI don't know why people just pretend there hasn't been any ultra costly nuclear incidents. Personally, I think nuclear could be fantastic, humans just cannot be trusted to manage it. Fukushima was a case of negligence, it wasn't caused by the Tsunami. The operators did not implement the recommended safety improvements because they didn't respect Murphy's law. So when a case is made like this, "just spam nuclear reactors", you're glossing over the details that we've fucked up a lot of nuclear reactors? The cleanup operation hasn't only costed hundreds of billions of dollars, it's severely damaged, and will continue to damage Japans' reputation and desire for exported foods and seafood. I'm not trying to attack you or your views, but if nuclear was easier and cheaper, it would've already proliferated in the same way that solar has. Can you imagine how much solar will exist in 30 years compared to nuclear? it will be absolutely everywhere.
- katbyte 3y agoWe’ve fucked up a lot of nuclear reactors? At my count it’s 2. 2 out of over 400 over 60? Years. And while solar is great, you still need base-load and for most places in most cases solar + storage can’t do that.
- kaba0 3y ago2, one in the Soviet Union with known-to-be unsafe technology with bad incentives around control. The other happened as the result of the biggest recorded tsunami in Japan and human error, again. With that said, cooling reactors need a bit of rethinking with this warmup, rivers may no longer be fine to use.
- katbyte 3y agonot to mention coal kills more people via radiation yearly then have died from those 2 reactor accidents
- gsatic 3y agoThere is a better way to think about it esp for the tech/engineering class that hangs out over here. Govts/corporations are full of ppl. People are programmed not just for Consumption but Conspicuous Consumption. Social status is directly tied to what Luxuries you can afford. No one wants to work for a simple boss, but for the dude who lives on a super yatch. The most ambitious ppl know this and take full advantage of it to trap ppl who work for them in golden cages. The greatest anxiety of a beauracrat/corporate exec is exiting the cage. Luxuries are a gigantic WASTE. And the largest companies in the world sell Luxury cause the most ambitious of the elite use luxury to signal status and trap/control everyone. Technical minded ppl spend most of their day trying to reduce waste. So they are the group that can come up with ways that can interfere with these cycles everyone feels they are trapped in.
- BuyMyBitcoins 3y ago>”Govts/corporations are full of ppl. People are programmed…” This is a pet peeve of mine, but seeing “ppl” drives me crazy. Particularly when the rest of the comment is typed normally, and then the next word is “people”!
- hashxyz 3y agoDo you even know how many years “an earth’s worth of biomass” could power our civilization? What if it’s like 1,000 years? I think you are just doomposting.