In the early morning hours of December 3rd ,1984, in the town of Bhopal (State of Madhya Pradesh), a tank of methyl isocyanate gas blew up in the Union Carbide plant, due to a sudden rise in temperature. A toxic cloud stretched over 40 sq/m and about thirty tons of gas were released into the air. 8000 people died during the night, mainly while sleeping, due to the lack of an alarm system of any kind . Those who tried to escape from the disaster got sicker, by exposing themselves. There was no evacuation plan, and rescue was not adapted. It's the worst chemical disaster of the century. Soon after, an inquiry was initiated, but it quickly met numerous obstacles, like the concealment of evidence, and delay of blood analysis of victims so that it was no longer valid. All of this contributes to the fact that we still don't know the exact causes of the catastrophe today. Even after the event, 300 000 people suffered, agonising because of the disastrous effects of the massive poisoning, while none could say if future generations would be affected.