Bitcoin Forum

BTC and ETH need a lot of electricity and a lot of nuclear plants

They are not green technology

Is cryptocurrency an issue to the environment?

Can something be done? Is anything being done at the moment?

Green Crypto Movement

Yes, it's a major issue. It could be solved by using Proof-of-Stake instead of Proof-of-Work but switching would require a hardfork and would have unprecedented consequences.
A simpler solution would be for countries to force miners to use renewable energy sources when exceeding a specific energy consumption amount (so that home miners wouldn't have to do something like this).

High electricity consumption is exactly the point of PoW algorithm, it makes any attacks on the network very expensive for any potential perpetrators, so any changes that reduce power consumption are also likely to make Bitcoin more vulnurable. But electricity itself not always causing pollution, nuclear plants are actually much more safe for environment than coal and gas. I think in the future people will build cryptocurrency mines close to renewable energy sources: hydroelectricity, solar power plants, wind, geotermal.

wow it is actually very serious issue
and comapanies must to figure out how to deal with it

Tell me how nuclear is worse for the environment than a majority of forms of fossil fuel energy production and then we have something to talk about. But if you're going to try and say that only wind/hydro/solar are the means to achieving all energy supply without considering the nuclear option then there's no point even entering this debate in the first place.

Plus compared to fiat money production cryptos are a lot less impactful on the environment but I wouldn't expect you to know that either.

Like other new technologies, bitcoin is also no green type of thing. The mining is the most dangerous part of bitcoin, this is very harmful to the environment for high electricity consumption. And more GPU is produced, more sources from nature are wasted.