The mining of crypto-assets can consume a lot of electricity, which can result in greenhouse gas emissions, besides purchased grid electricity, crypto-asset mining operations can also cause local noise, electronic waste, air and other pollution from any direct usage of fossil-fired electricity, and additional air, water, and waste impacts associated with all grid electricity usage that can affect on nearby communities.
This nonsense is being discussed for sometime now, lets cut to the topic, BTCitcoin mining is consuming a lot of electricity and it is harmful to the environment while majority of the government are planning to ban Combustion engines in favor of electric cars and where do you think those electricity will be generated. The view that migrating everyone to electric cars would be a great idea but mining BTCitcoin would cause a lot of damage to the environment, what a bunch of jokers trying to find a cause and then rally against it. FYI many miners are using renewable energy and if these sort of discussions are created thinking BTCitcoin will change from POW to POS, then it is not going to happen.