13 sub-categories under Environmental Disasters and Organizations:

Chemical Spills (1)
Earthquakes (2)
Environmental Effects of War (8)
Floods (0)
Hurricanes (2)
Landslides (0)
Monsoons (0)
Nuclear Disasters (0)
Oil Spills (3)
Tidal Waves (0)
Tornadoes (1)
Volcanoes (0)
Wildfires (2)