There would always remain some miners for it, but the accepted "real" bitcoin could change under a climate pandemic cocktail of:

- Steep carbon regulation coordinated across the UN and harsh sanctions against countries that don't comply.

- Forced selling from BTC miners and panic selling from investors.

- The resulting drop in BTC price means miners cannot afford to pay for carbon offsets.

- Large drop in hash rate that doesn't recover quickly due to shortages in renewable energy infrastructure materials, further shaking confidence in the network.

- BlackRock swapping BTC holdings into PoS Bitcoin and declaring it the "real" bitcoin.

- PoS Bitcoin narrative pushed mainstream as the greatest innovation of our time.