People complain about how much electricity bitcoin uses
But they don't look at the bigger picture.
According to stats pulled from Wikipedia, in 2015 roughly 160 PWh of energy was produced. However, the world only used about 110 PWh.
That left the other 50 PWh to go to waste.
Bitcoin currently uses 0.075 PWh/yr
Waste alone can power Bitcoin 650 times over.
Tell that to someone the next time they talk about energy consumption.