Disclaimer: Eco-friendliness does not imply low power consumption. Cloud computing data centers use huge power sources to power their operations to which if pressure from green activists was diverted to shutting down would also take down most of the top 1000 websites with them. So any posts spreading rumors about "the upcoming winter killing miners and cryptocurrencies" will be summarily deleted by myself, thanks.See the supplementary article on my blog about what miners can do to combat climate change here: Bitcoin Being Energy Efficient?Two very significant events happened recently which prompted me to start this topic:
- Ethereum's transition to Proof-of-Stake was completed yesterday
- Congress wants to make a law to ban Proof-of-work mining algorithms (as with most partisan efforts in the US of A, this is largely a farce and abortive effort, more at danger to be forgotten by both parties should a more political conflict emerge - that it all I will talk about them in this post)
Some of the more non-technical people or perhaps policy makers reading this board are probably shaking their heads, with all the aversion to Proof of Stake shown here:
"Will Bitcoin ever become environmentally friendly?"Yes, Bitcoin can become environmentally friendly in a way that doesn't require a change to its Proof of Work model. It should be known that Bitcoin mining is fully capable of harnessing the power of all kinds of renewable energy, and in fact, many mining farms are already using them.
The environmental cleanliness question is largely the miners' problem and there's nothing the devs can do about it - since any such solution would require taking power away from miners and giving that power to other, significantly less centralized entities (it is nobody's desire except perhaps for the trolls at r/Buttcoin to see Bitcoin suffer a 51% attack).
"Will miners keep contributing to make increasing larger pollution?"Regarding the waste products of electricity generation from various renewable and non-renewable sources. Miners can help lower the carbon footprint by using renewable energy as I mentioned above, and also by using the
waste products of other fuel processes, such as methane, as a source for electricity.
Like I said, it depends on the miners to design innovative electricity generation methods that use different types of green fuel sources, particularly those which utilize the waste products of fossil fuel generation. This is a non-technical problem domain however, and developers can not enforce any rules for this on the network.
"Is bitcoin going to do anything about the Congressional proposal to ban Proof-of-Work algorithms?"No. Once again, this is not a developer problem. Also, the merge took a few years from start to finish to be fully carried out. Trying to rush the process in a timespan of a few months will split the network into many pieces.
"Why not just run it on a handful of computers?"Because doing that will make it vulnerable to a 51% attack (one person or group with more than half of the total hash power can mine whatever transactions they want, censor, or defraud people). It's important to note that new cryptocurrencies cannot start out with the Proof of Stake model because it is easy for
anyone to get a majority supply of coins during that phase. What usually happens after this is the coins become worthless because the entire supply of coins constantly get transferred between thieves.
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