climate change increases or decreases the bitcoin rate?

Is there a bigger possibility to the Fiat will collapse or have a bigger fall than the cryptos (because of global warming)? It can be I think, but the cryptos are going to fall too. But perhaps there will be some sanction on Fiat and not on cryptos. If the carbon dioxide emission will cost money, the corporation maybe going to sell their products with cryptos and doing it illegally to avoid paying for the CO2 emissions.

Then is it ethically wrong to buy crypto or it's necessary to survive?