Next to Indonesia where in May this year, a drilling accident in the south of the island of Surabaya caused a massive rupture in the earth, unleashing a still-uncontained flow of hot, toxic mud.
So far, the mud has swallowed up six villages across a 30 square kilometre area.
Our Indonesia correspondent Rebecca Henschke went to see it for herself, and is speaking with Adam Connors.
Podcast: Play in new window | Download
