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Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

blog.yannev.es

41–50 of 88 posts

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#41
post #6

"the decision to buy one Bitcoin versus about 29 iPhone 12 Pros emits 195 times as much CO₂" The headline made it sound like 195x a single iPhone...

If I read only this sentence I understand that a bitcoin emits 195*29 more CO2 than an iPhone.

But he got 195 by multiplying 29 by 6.7. And 6.7 is the ratio between bitcoin and Apple CO2 emissions.

I'm not convinced that any of this computation is meaningful. We don't need this to prove that bitcoin is a waste of energy.

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#42
post #27

The higher the price BTC go, the more miners will mine to get it near break even. Imagine 600k price where some pumpers are targeting, you are looking at potentially 10x the energy used to mine blocks. Is that a correct characterization of the problem at hand?

If Bitcoin reaches those prices, it would have twice the market cap of all gold and significant % of global wealth, so that energy would be well spent to secure all that wealth.

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#43

Earlier quoted context omitted.

> The demand is there. Let's talk when covid is over. It wouldn't be the first time it drops 80%

Why would Covid drive up the price of Bitcoin? Sure, the pandemic is being used for attempted government power grasps, but those won't go away with Covid.

Halfway the same thing that's driving the prices of stocks and pokemon cards: people with extra cash from stimulus checks, spare time, and fomo. "Crypto being the future of finance" is a story people tell themselves to justify the price of bitcoin, and while some flavor of blockchain tech could someday back parts of finance, it won't be bitcoin. Buying bitcoin is a bet that more people will buy bitcoin.

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#44

This articles makes absolutely no sense. It uses market capitalisation of Apple and bitcoin to compare the CO2 emissions of an iPhone and a bitcoin transaction which is clearly nonsense. You could calculate the rough CO2 emissions of a 1 BTC transaction by dividing annual estimated CO2 emissions by bitcoin miners (35 million tonnes) by the number of annual transactions (100 million) which equates to about 350kg of CO…

Also, 1 BTC is about 30 iPhones in money. It’s as interesting as saying a holiday consumes more than a bus trip: only CO2 / dollar is interesting. Or equivalent-CO2 “per service provided”.

Because, with all the remaining dollars, you’re not going to destroy them, you’re going to consume other services/products, and if they are heavier in CO2 emissions per dollars in average, we’re not in a better position.

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#45

I was a bit disappointed in the article given the headline. The analytical methodology used here is a bit odd to me, and there was no explanation as to why this methodology was used. I still don’t know how much incremental CO2 is emitted from buying a Bitcoin or an iPhone after reading it. All I see is a weird CO2 divided by market cap calculation... Does anyone else have good data on the incremental CO2 emissions fr…

For bitcoin you'd probably not be able to really determine it.

One component would be reasonably straightforward, take the fee paid for the transaction and divide it by the block reward it appears in, it's arguably directly responsible for that percentage of the emissions related to that block.

The other potential component would be any impact on the value of bitcoin due to the transaction. It's likely close enough to zero most of the time, but when it isn't zero it's gonna be a doozy.

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#46
It's not only about emitting CO2, it's also about wasting the earth's surface to produce electricity, such as damming rivers or plastering it with solar panels, or mining for resources to fabricate the bitcoin-mining hardware (which needs to be replaced every few years). The problem will be increasing as the price of BTC goes up. It's a tragedy of the commons.

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#47

This articles makes absolutely no sense. It uses market capitalisation of Apple and bitcoin to compare the CO2 emissions of an iPhone and a bitcoin transaction which is clearly nonsense. You could calculate the rough CO2 emissions of a 1 BTC transaction by dividing annual estimated CO2 emissions by bitcoin miners (35 million tonnes) by the number of annual transactions (100 million) which equates to about 350kg of CO…

And in US$/kg Bitcoin is a real deal. At $50,000 that is about $143/kg of CO2 and an iPhone @ $1000 is less than $10/kg of CO2. :-)

I completely agree that using arbitrary numerology to cast shade on a technology you would rather not exist is not very good reasoning, but some folks respond to it so it persists.

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#48
post #11

I feel like it's really easy to pin bitcoin on its energy usage just because it's so easily measurable. Is there any research that compares a traditional banking platform in terms of W/tx in comparison to bitcoin?

You don't need detailed research because a little back-of-the-napkin math shows that it's way too much.

A comparison I found recently is that Bitcoin uses 10x as much electricity as Google.

Why is this? Well, you can think of Bitcoin as giving away prize money to miners who win a contest. Currently they are giving away over $50 million in Bitcoin every day. [1] The electricity spend by miners is capped by the amount of prize money.

Why so much? It wasn't planned. The bug in Bitcoin's algorithm is that energy usage is proportional to market price, and the amount it went up wasn't anticipated. If Bitcoin crashed to a tenth of its current market value, it would be about even with Google. That's still way too much for what it does. Maybe it should crash to 1% its current price, to be reasonable?

Besides a market crash, the other way to fix it would be speeding up the schedule for lowering miner awards. It's going to drop in half this month, but there's no principled reason to wait another four years for the reward to drop in half again. But good luck getting consensus for that. More revenue is better than less revenue and miners don't want the prize money to drop.

Another comparison: Musk sponsored a $100 million X Prize for inventing carbon capture technology. That's a very big prize for an important cause, and it's only 2 days of Bitcoin prize money.

The Bitcoin prizes are too damn high.

[1] https://ycharts.com/indicators/bitcoin_miners_revenue_per_da... [2] https://www.xprize.org/prizes/elonmusk

Re: Buying a Bitcoin emits 195x as much CO₂ as buying an iPhone

#50

This articles makes absolutely no sense. It uses market capitalisation of Apple and bitcoin to compare the CO2 emissions of an iPhone and a bitcoin transaction which is clearly nonsense. You could calculate the rough CO2 emissions of a 1 BTC transaction by dividing annual estimated CO2 emissions by bitcoin miners (35 million tonnes) by the number of annual transactions (100 million) which equates to about 350kg of CO…

Also, 1 BTC is about 30 iPhones in money. It’s as interesting as saying a holiday consumes more than a bus trip: only CO2 / dollar is interesting. Or equivalent-CO2 “per service provided”. Because, with all the remaining dollars, you’re not going to destroy them, you’re going to consume other services/products, and if they are heavier in CO2 emissions per dollars in average, we’re not in a better position.

An iPhone is a physical thing. All kinds of different metals were mined/recycled and manufactured and shipped around the world.

A bitcoin transaction is virtual. Some bits have to be flipped. That it is such an energy intensive and environmentally bad clusterfuck is a tragedy.

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