All calculations are #Bitcoin BTC ONLY. Although hash rate is climbing, mainly due to vast improvements in #ASIC efficiency. Bitcoin's #emissions are starting to plateau due to improvements in overall #Grid carbon intensity.
Halving events may cull some of the less efficient mining operations causing a brief dip in power consumption.
The dotted blue line is MT #CO₂ minus mitigation such as mining with #Methane + Home/ Business heating. Other mitigating factors not included are mining curtailment/ demand response schemes taking advantage of cheap clean but intermittent renewables & #banking sector curtailment.
The large drop in emissions during 2021 is due to the China mining ban followed by the subsequent move of much of the hash rate to the US where grid carbon intensity is generally lower.