I know it has been discussed often with many hardliners on both sides about the energegy consumption of Bitcoin and its CO2 footprint.
For my opinion as crypto technical forward payment option we should not close the eyes to it when many people try to lower their CO2 footprint to do the same.
For my start i use the data of
https://digiconomist.net/bitcoin-energy-consumption to say that BTC needs minimum of 38 TWh up to 63 TWh a year with an annual footprint of 30216 kt CO2 (!!!) Everyone can expect what this means.
So my question is: Should DEV-team focus on a enviromental friendly main bitcoin fork? We have big knowlege in that team so we possible have a secure solution. Can be POS but need not to be.
I agree that CO2 print is very important, and if it were a way to reduce electricity consumption, it would be great. However, I don't think you are right that it's not possible to keep mining and yet become eco-friendly. Surely, there's some pollution from the alternatives we have today, but significantly reducing it is still a good idea. Moreover, it does not seem like our world is on the path of using less energy. In fact, I am pretty sure that the consumption will grow along with civilization. So searching for better sources of energy and learning to compensate the footprint by actions that can reduce it seems to be a more realistic way. Moreover, I don't think Bitcoin users are generally concerned enough about ecology to support the fork.