BTC mining consumes over 3 x the energy of gold mining.
https://www.ccn.com/bitcoin-mining-consumes-over-3x-the-energy-of-gold-mining-research/
private transactions can be processed on ETH.
BTC mining consumes over 3 x the energy of gold mining.
https://www.ccn.com/bitcoin-mining-consumes-over-3x-the-energy-of-gold-mining-research/