"These are my thoughts. Bitcoin is not environmentally friendly and is a huge waster of electricity."
There is another side to that argument: bitcoin mining may drive innovation in alternative energy like never before. There is enough of a financial incentive now to develop new solar tech, and I would not be surprised if some of the biggest mining outfits start funding research teams.
I completely agree with that. Many of us are currently exploring how cryptocurrencies can accelerate the development of new technologies producing almost free, abundant and clean energy. This, combined with the model of decentralization inherent to Bitcoin, has the potential to enable a new model of decentralized energy production & distribution.