There are many actions being taken by the Bitcoin mining industry to improve itself, and criticism about the environmental impact of Bitcoin mining is becoming increasingly irrelevant today.
We can't deny that Bitcoin mining has huge environmental impact and already harmed it a lot but it's a fair price to pay IF it works.
Now IF the projects drops dead at some point, then this whole mining will go to waste and Bitcoin will become the biggest waste of resources in the history of mankind. (this needs Clarkson voice-over in your head)
This is a myth that has been injected into the crypto community again and again but it's not extremely dangerous to the environment as you exaggerate. Yes, power consumption of mining operations is high but look how much power we use/waste for the banking system to operate and I would say Bitcoin mining operation doesn't even consume 1% for mining compared to the banks so it's not just a complete waste and if miners are not being profitable anymore then there will be adjustment in the difficulty happens after every 2016 blocks mined so lesser the difficulty mean less resources are being consumed.