Bhopal Gas Disaster
- Date
- December 2-3, 1984
- Category
- Environment & climate
- Region
- Bhopal, Madhya Pradesh, India
- Era
- Contemporary
- Significance
On the night of 2-3 December 1984, approximately 45 tons of the highly toxic gas methyl isocyanate (MIC) leaked from the Union Carbide India Limited pesticide plant in Bhopal, Madhya Pradesh, India, after water entered storage tank E610 and triggered a runaway exothermic reaction.
None of the plant's safety systems were fully operational, and the dense gas cloud spread over surrounding densely populated neighbourhoods, exposing more than 500,000 people. Official figures recorded roughly 2,259 to 3,787 immediate deaths, while widely cited estimates place the total death toll between 15,000 and 20,000, alongside more than half a million injuries ranging from blindness and respiratory damage to permanent disability. In 1989 Union Carbide Corporation paid a US$470 million settlement that survivors' advocates long considered inadequate, and the abandoned site left a legacy of soil and groundwater contamination affecting later generations. Regarded as the world's worst industrial disaster, the catastrophe reshaped global debates on corporate accountability, industrial safety regulation, and environmental justice.
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Empires active in December 2-3, 1984
- Soviet Union1922 CE – 1991 CE
- British Empire1583 CE – 1997 CE
- Portuguese Empire1415 CE – 1999 CE
- Yugoslavia1918 CE – 1992 CE
Related environment & climate events
- The Chernobyl Nuclear Disaster1986
- Montreal Protocol on Substances that Deplete the Ozone Layer16 September 1987
- The Rio Earth Summit3-14 June 1992
- The Sahel Drought Triggers Mass Famine Across West Africa1972–1974
- The Bhola Cyclone Kills Hundreds of Thousands in East Pakistan1970
- Sahel Drought and Famine1968-1974
Further reading
The wider story
A New Green History of the World
The classic accessible account of how environment and climate have shaped human history.
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