https://ourworldindata.org/grapher/global-energy-substitutio... puts the latest number at 173,340 TWh in 2019. This is an underestimate for the current value as energy consumption has been increasing.
https://cbeci.org/ estimates the annualised consumption based on a 7 day moving average of 120.87 TWh for bitcoin. To be generous let's assume all cryptocurrency mining is double that for 241.74 TWh.
That's only 0.14% of the total energy production, a lot of which comes from renuables (abundant cheap electricity means more profits for miners).
Even if you assume the worst case of 1100 gCO2eq/kWh (https://www.parliament.uk/globalassets/documents/post/postpn...) that's 265.914 Million Tonnes and https://ourworldindata.org/grapher/annual-co2-emissions-per-... shows the 2019 value at 36.44 Billion Tonnes
That's a grave overestimate of 0.73% assuming the most pollution energy production and even then it doesn't even compare to any other sector: https://ourworldindata.org/emissions-by-sector