I just wanted to add an evolutionary perspective on why H2S might smell so bad for us. Sure it's dangerous, but so are many gases that don't smell. However: ht

I just wanted to add an evolutionary perspective on why H2S might smell so bad for us. Sure it's dangerous, but so are many gases that don't smell. However: https://en.wikipedia.org/wiki/Permian%E2%80%93Triassic_extinction_event#Hydrogen_sulfide_emissions https://en.wikipedia.org/wiki/Permian%E2%80%93Triassic_extin...