If you really consider the amount of energy consumed to mine one bitcoin you will know that it is really an energy consuming coin,take into account the electronic wastes it creates in the form of obsolete mining hardware's and the amount of power it is using world wide,to be frank it is a complete waste of energy,we need to have some economic solution for these things which i know is not possible. Bitcoin is volatile from the start and it did not kill the coin and i think it wont.