[CaptainZapp]

Actually most of the energy comes from renewable sources, which would be wasted otherwise.

That argument is just silly. I don't think that miners give a flying fuck where the energy is coming from as long as it's cheap.

[heptathorp]

His point is some of the cheapest energy in the world is renewable (like hydroelectric energy in China), which is what Bitcoin is using. Bitcoin mining can take place virtually anywhere in the world so it can be done where energy is already abundant.