The actual impact might be surprising Heard about the 1970's gas crisis, that there was a move to ban auto racing, because of the "obvious waste" of racing car

The actual impact might be surprising Heard about the 1970's gas crisis, that there was a move to ban auto racing, because of the "obvious waste" of racing cars circling tracka at <5miles/gallon, and stadiums full of people. Some studies were done. It turns out that auto racing didn't even make the charts in terms of fuel usage. What had the greatest environmental/fuel impact? Bowling. Yup, bowling. Competition leagues meeting daily in every micro-town and neighborhood, all the driving to & from the lanes... A couple dozen cars driving several hundred miles at 5mpg, once in the nation each week for the top series, even with 10K cars, doesn't make a dent. I'd expect concert tours, with a few big concerts per week, compared to constant heat generation of ETH miners is similarly gnat-on-an-elephant scale.