If you have even the slightest concern about global warming or the environment overall, you should consider Bitcoin a horrible mistake we should be trying to eradicate.<p>It's a currency backed by willingness to waste electricity doing useless work. And worse, as it gets more popular, the willingness and price will continue to drive higher.<p>Hopefully China recognizes that this is in odds with their efforts to clean up their environment, and crushes Bitcoin fast before the damage is too catastrophic.