In support of your points, I think it's worth remembering those "life in a bitcoin mine" videos that some journalists groups did http://media.coindesk.com/2014

In support of your points, I think it's worth remembering those "life in a bitcoin mine" videos that some journalists groups did http://media.coindesk.com/2014/09/20140729120509_0210.jpg http://media.coindesk.com/2014/09/20140729120509_0210.jpg The waste heat from these operations are not being reused. The energy most likely came from a coal fired power plant, or from a nuclear reactor.