Regarding Bitcoin mining's carbon footprint: Since miners will eventually only be able to compete based cost of their electricity mining will be driven to plac

Regarding Bitcoin mining's carbon footprint: Since miners will eventually only be able to compete based cost of their electricity mining will be driven to places with extremely cheap electricity. I don't know if that will always correlate with "clean" energy, but it seems like it would. For example, the recently announced Bitcoin mining operation in Iceland, where cheap geothermal and hydroelectric electricity and plenty of cold air for cooling is available: http://dealbook.nytimes.com/2013/12/23/morning-agenda-the-bitcoin-mines-of-iceland/ http://dealbook.nytimes.com/2013/12/23/morning-agenda-the-bi... If the heat from mining can be reclaimed for other purposes (heating homes, etc), then the effective carbon footprint is reduced even further.