I agree with u human, like the power demand for BTC mining has increased now due to the extreme devices used, like in year 2016 or early 2017 btc was to be mined on a shitty PC which can work on very low power consumption but now it requires special ones for it fully dedicated for mining more over the heat produced in machines requires cooling, and so another increase in power usage. and this power usage is met by producing more electricity using the polluting sources.

but there are some coins that can be mined on pretty basics, like take for example steem witnesses they use a PC like with a config of 32Gb ram and other things and its not as power consuming as BTC miners, moreover the steem blockchain handles more transaction at a given interval of time than btc blockchain. so in my opinion there is a way to control this only if all humans take it into consideration collectively