The environmental impact from Bitcoin is only good. How? Needing more electricity means:
- more electrical plants
- more jobs producing electricity
- more CO2 from the power plants
- plant growth in nature increasing from more CO2
- more food from plants allow the populations to grow
- we get more humidity from extra heat
- a warmer atmosphere places more moisture in the air to block the sun's overheating
- evaporation of the water causes cooling as does the blocking of the sun's rays
- a heat equilibrium is reached which warms up Siberia and Antarctica for habitation
- most of the water from the polar caps melting goes into the air rather than the ocean
- all the extra upper air moisture mixes with cosmic rays to produce more natural H2O2
- more H2O2 kills off a whole bunch of disease bacteria and so-called viruses
- the bodies of people don't have to work so hard at fighting diseases
- the now unnecessary medical gets shut down so medical people can find something practical to do
- people start to live long
- longer life helps the highly intelligent people to think longer and better
- more geniuses from higher populations
- better space flight and crop-growing methods are developed by the geniuses
- the earth gets comfortably populated at 100 billion people
- by this time real working space flight has been developed
- populations start moving to the stars
All this because Bitcoin caused us to use more electricity, which caused more CO2, which helped us reach the stars.