I'm still waiting for the environmentalists to start going after the miners who seek out cheap energy and then gobble up tons of it just mine their crypto:

https://www.politico.com/magazine/story/2018/03/09/bitcoin-m...

Today, a half-megawatt mine, Miehe says, “is nothing.” The commercial miners now pouring into the valley are building sites with tens of thousands of servers and electrical loads of as much as 30 megawatts, or enough to power a neighborhood of 13,000 homes. And in the arms race that cryptocurrency mining has become, even these operations will soon be considered small-scale.

That is INSANE.