This article seems to intentionally ignore the core reason for cryptocurrencies; escaping inflation and control. The article then proposes to use the law to bring those people back within the control of fiat and government oversight. I no longer think the environmental argument is really plausible here. Clearly crypto mining is emitting using a lot of power and some of that is CO2. But the competition is fiat; backed…
All of it is CO2. Let me explain.
When you burn energy for bitcoin mining, you don't just use capacity of your local energy producer, you are delaying removal of legacy power producers.
Before a particular power producer (for example burning coal) can be turned off, the capacity must be created from other sources (for example renewable). If you decide to start burning huge amount of energy, before those CO2 guzzlers can be turned off we will now have to build even more capacity -- exactly the amount you are burning to mine bitcoin, but it also means that while this is happening the CO2 is still being emitted.
This assumes that introduction of new renewable sources of energy is independent from bitcoin mining. As far as I know this is true.
Or in other words: if introduction of renewable sources of energy is independent of bitcoin mining, the energy production from these sources is the same regardless of whether the bitcoin mining exists or not. Logically what this means that what is changing is energy production from non-renewable sources and it could be explained that they are working at either higher capacity or their removal is delayed.