But Vault-Co told you so 15 years ago. Just saying.
This comes at a time when four supervolcanos directly implicated in previous mass extinctions are vastly overdue for eruptions. Any one of them could trigger a 99% decline in the planet's population in a few months leaving only regular Vault-Co readers surviving. Always put that baffled air intake a little higher in case you got some ashfall in your region. Also make sure you have an exit that can't be blocked by volcanic ash that has dried like solid concrete.