Due to the current economic crisis caused by the coronavirus pandemic, further dramatic climate change and the consequences of Russia's war of conquest in Ukraine, the attitude of states towards the mining of cryptocurrencies using the PoW algorithm may change. The high energy consumption during the mining of such cryptocurrencies, and above all bitcoin, has long been pointed out by some high officials of states and organizations for the protection of the environment. A winter is approaching, which will be very difficult for European countries due to their reorientation from Russian energy resources to alternative ones. After all, their long-established supply chains have been disrupted, and their change causes certain difficulties. Therefore, bitcoin can quite realistically fall out of favor with states.