This could work and the only problem in my opinion is logistics because in this kind of remote environment and not to mention harsh, a steady supply for the staffs manning the mines will be the biggest problem,

The city is served by Alykel Airport and Valek Airport. There is a freight-only railway, the Norilsk railway between Norilsk and the port of Dudinka. There is a road network around Norilsk (such as the A-382 which links to Dudinka and Norilsk Alykel Airport), but no road or railway to the rest of Russia. In essence, Norilsk and Dudinka function like an island. Freight transport is by boat on the Arctic Ocean or on the Yenisei River.

I have to disagree with you about the part where bitcoin mining industry does not contribute to air pollution, if the electricity generated comes from a coal power plant then that means that that industry indirectly contributes to air pollution, if the power that is used in these mines are the environmentally friendly one then I guess I have no reason to say that the bitcoin mine contributes to air pollution too.

How Iceland became the bitcoin miners’ paradise

Feb 2018

The island nation is the first to use more electricity on mining cryptocurriencies than on its households – thanks in part to its magma-fuelled power plants

https://www.theguardian.com/world/2018/feb/13/how-iceland-became-the-bitcoin-miners-paradise

Iceland is the coolest location for data centers

September 23, 2019

Did you know that Iceland is the place for sustainable data centers?

Think of the following: When comparing the carbon emission of training a large AI model to that of the life-cycle carbon emission of an average American car (incl. production and recycling), emissions of the AI model are about five times greater than the car’s at approximately 626,000 to 126,000 in pounds of CO2 equivalent. To relate further to the common citizen, the carbon footprint of a roundtrip flight between New York and San Francisco for one passenger is around 2,000 lbs of CO2. Bitcoin mining is another generous sinner, using 215 kWh of electricity to verify just one transaction.

Countries around the world will be influenced substantially by this development. The Danish Energy Agency has predicted that in 2017-30 new data centers will contribute with 85% of the increase in electricity use in the Danish business sector.

Iceland has the perfect weather conditions for data centers, and favorable access to its two primary sources of generating renewable electricity for the data centers, i.e. geothermal and hydroelectric power. Such circumstances improve the (Icelandic) landscape for sustainable energy greatly. Besides promoting sustainability, these two renewable energy sources also facilitate high-cost efficiency and competitive, stable energy rates due to the Icelandic government’s policy in this area.

https://www.ibm.com/blogs/nordic-msp/iceland-data-centers/

Google experimented with server farms on ships, utilizing ocean water to provide liquid cooling. This was many years ago. (AFAIK it didn't work)

The most novel crypto contribution russia proposed is mining bitcoin with nuclear power which hasn't yet materialized AFAIK.

In late 2020, Rosatom State Atomic Energy Corporation opened a mining farm near the Kalinin nuclear plant in Udomlya, 200 miles northwest of Moscow.

Russia’s state-owned oil major Gazprom Neft has reported a successful pilot test using associated gas that would otherwise be flared to produce electricity for mining cryptocurrency at one of its Siberian drilling sites. Vekus placed a shipping container housing 150 units of Bitmain’s Antminer S9 ASICs on the site, and in 1 month the machines mined 1.8 bitcoin using 49,500 cubic meters of gas, according to a Gazprom Neft statement that appeared in the Russian crypto news outlet Forklog.

Where is the electricity coming from for this mining in Norilsk?