There will always be a solution to solve every problem for bitcoin. Using renewable resources in bitcoin mining is the answer, as we know that many resources are not yet used. So with the news from El Salvador that they want to use Volcanic sources of energy to mine Bitcoins will bring a new idea for people who wish to mine bitcoin. Wind power, water power, and other resources, even solar power, need to research before using them to help the mining process. So Bitcoin really brings a new way to change the world for the better because that will start invention in renewable resources.
Bitcoin mining is not too terrible for environment and media spreads it as the end of this world. They do it when Bitcoin need to be corrected after many months with Bull.
Above 35% of energy that is used for Bitcoin mining is renewable that is environmental friendly. Mining farms will use more sources from wind, water, solar and geothermal energy. And they can set up more equipments to use heat from ASICs for local demands. If governments are more strictly to enforce mining farms to do so, they will.
We witness it with many industries and in many nations. In first phases of industrialization, nations are very soft and easy with regulations for environments. When the industrialization growth reaches to a level government wants and the impacts on environment is bad enough, chances will happen.
Fortunately, industrialization does not die, stop or whatever postpone. Bitcoin mining and crypto mining will be adapted to governmental regulational changes as same as that.