fascinating. great pot.
i wonder how the cooling is done? do the miners wear special suits or is the entire mine cooled? and what about the equip? operating at 180 degrees?
Because the Resolution Copper deposit is more than a mile beneath the surface, installation of significant amounts of refrigeration is necessary to reduce rock temperatures to a safe, comfortable working level. Electric-powered mining equipment will create less heat, helping to ensure the safety and comfort of workers.
http://resolutioncopper.com/sdr/2011/environment