While Ethereum's is almost 60% lower at around 3.1 million tonnes of CO2, it is still roughly equivalent to the total carbon emissions of Namibia over the same time period
This one's regarding Ethereum^
Let me quote some facts.
Now when we talk about bitcoins.
Thank you so much for this, i just know that if POS is very conservative compared with the POW coins.
The Bitcoin system has a carbon footprint of between 22 and 22.9 megatonnes per year. That is comparable to the footprint of such cities as Hamburg, Vienna or Las Vegas. "Naturally there are bigger factors contributing to climate change
Now you have to understand the fact that, bitcoins is limited but Eth is not limited therefore I would say for the long period of time the carbon footprint of ETH would be much bigger than BTC at the same time you have to understand the fact that even after all the bitcoins have been mined the machines would still be used to make the transactions work.
(All the information is taken from google)
But there are a lot of things that one has to consider:
-If someone is using renewable sources of energy or no and stuff like that.
It's not a lot of people can afford to use the renewable energy because it will cost them a lot.
Eth is not having limitation on its supply now but it will be determined by the POS system. Ethereum will be leaving the POW consensus and won't it make ethereum become even more conservative than before?
This time ethereum is also available for staking and it's just the matter of time until it will be fully moving to the POS.
Every 4 years bitcoin halving will happen and that will make miners must put more and more mining rigs to mine bitcoin.
The mining rig on bitcoin chain will be last forever and this will become a big problem.
