SciShow takes you inside a limnic eruption, a natural disaster that’s as deadly as it is rare.

Carbon dioxide is the biggest player in the climate crisis, reshaping our world in an urgent way, but that’s not the only way CO2 has changed the world. It’s also contributed to making some of the weirdest places on Earth.

Three decades after a freak natural disaster in Cameroon killed hundreds and displaced thousands, survivors are hoping to return home.