While Bitcoin Energy Concerns Grow, Nobody Discusses the Carbon and Military Violence Backing US Dollars This week a great number of bitcoin supporters and skeptics have been arguing over whether or not bitcoin mining is harmful to the global environment. However, crypto supporters have been saying that concerns over the Bitcoin network’s energy supply are absurd, in contrast to the carbon used and the military violence that backs a number of fiat currencies including the U.S. dollar. One could even go as far as to say that the American dollar alone has left boot prints on large groups of humans over the years and desecrated entire countries.