Sep 7, 2016
Acid waters, but not as acid as people are.
seen from United States
seen from United States
seen from China
seen from United States
seen from China
seen from United Kingdom
seen from United States
seen from China
seen from Russia
seen from Malaysia
seen from Finland
seen from United States
seen from Netherlands
seen from United States
seen from Uruguay
seen from United States
seen from Finland
seen from Malaysia
seen from Italy
seen from Australia
Acid waters, but not as acid as people are.
Molten sulfur burns with a blue flame. In the crater of Kawah Ijen volcano, workers condense sulfuric gases into blood-red molten sulfur, which hardens to a (sulfur-)yellow solid. Photos © Olivier Grunewald