I do not think so but there are environmental movements being created against cryptocurrency mining.
As far as I remember, there was a similar post like this one and someone extensively replied, saying that the heat generated by cryptocurrency mining is relatively low to the point that it does not produce as a pollution perse compared to other pollutions present. Unfortunately, instead of addressing current and worse pollutions in the world, these movements are targeting cryptocurrency mining because of pure hatred.
Like what some countries have done, a miner can geographically and strategically setup their mining equipments in countries or places with a cool climate to reduce the outgoing heat. But I really doubt that countries would permanently ban cryptocurrency mining.
If Bitcoin mining brings huge taxation benefits, then it's unlikely governments will go against it due to "environmental concerns". Everything must be in the governments' own interest to avoid further obstacles/hurdles in the future. With alternative energy sources, it's likely Bitcoin mining will become greener over time. El Salvador is planning to establish a huge Bitcoin mining hub powered by Geothermal energy (volcanoes). Other countries can make use of solar and/or wind energy (even hydroelectric energy) to help contribute to the cause.
I think the "harming the environment" situation is nothing more than FUD spread out by Bitcoin haters worldwide. Banks and some millionaires could be behind this, in order to minimize Bitcoin's presence in the mainstream world. It's a good thing the pioneer cryptocurrency is decentralized or it would've already been defeated by its enemies already. Who knows if Bitcoin remains the only PoW cryptocurrency in existence within the not-so-distant future? Just my thoughts
