Volcanoes! No, this isn’t a flashback to your eighth grade science project; President of El Salvador Nayib Bukele is proposing harnessing the geothermal power of volcanoes to mine Bitcoin in his country. Believe it or not, this idea isn’t just to make the news of El Salvador using Bitcoin as legal tender even more explosive than it already has been; it’s a truly sustainable energy source that El Salvador already uses, and it may be the key to unlocking a green future for Bitcoin.