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Originally Posted by LightingGuy
That's not entirely true, a lot of the energy being used for mining is excess energy that would've been lost otherwise. The mining computers are scaled up and down based on the available excess energy. A lot of other mining computers run completely off of solar. I don't know the exact numbers or percentages on this though.
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For someone who claims to have done 200 hrs of research, you have rather remarkable gaps in knowledge on the topic at hand.
The emissions issues with crypto are well known.
Just Bitcoin in China....A paper in Nature:
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Abstract
The growing energy consumption and associated carbon emission of Bitcoin mining could potentially undermine global sustainable efforts. By investigating carbon emission flows of Bitcoin blockchain operation in China with a simulation-based Bitcoin blockchain carbon emission model, we find that without any policy interventions, the annual energy consumption of the Bitcoin blockchain in China is expected to peak in 2024 at 296.59 Twh and generate 130.50 million metric tons of carbon emission correspondingly. Internationally, this emission output would exceed the total annualized greenhouse gas emission output of the Czech Republic and Qatar. Domestically, it ranks in the top 10 among 182 cities and 42 industrial sectors in China.
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https://www.nature.com/articles/s41467-021-22256-3