I think miners should start invest on renewable energy source (solar panels, wind turbines) to lessen the impact of bitcoin on environment?
indeed electricity is a source of energy that is quite a risk to the environment, a consequence that must be accepted when the excessive use of electricity will have a negative impact on the environment. solar panels and turbine power is the best alternative and solution for pana users and miner bitcoin, because the system works to minimize the negative impact of mining, it is friendly to the surrounding environment while saving the cost of electricity payment.
but in realization requires individual awareness so that all mining activities of the source switch to the source of solar and turbine power, this needs to be facilitated and cooperation with private parties and government.