Bitcoin is good for the environment. The things that affects the environment is not the bitcoin itself but the tecnology that we used to generate bitcoin. Like mining and other power source that produced radiation.
I would suggest that government in any country must have to adopt the renewable source of energy that is applicable to them such that people from that place may use this source of energy when doing the bitcoin mining operations which requires more electrical power consumption. With this, I would say bitcoin may continue to be good for the environment with no harmful effects to mankind and business transactions will continue to flourish.
Renewable energies are also scarce, that means that even if you use renewable sources, you are using electricity that could potentially have other uses, so it is not impact free in any case.