The Bhopal disaster, also referred to as the Bhopal gas tragedy, was a gas leak incident on the night of 2–3 December 1984 at the Union Carbide India Limited pesticide plant in Bhopal, Madhya Pradesh, India.

It is considered among the world's worst industrial disasters.

Thirty-five years after the horrific gas leak, Union Carbide’s defunct pesticide plant continues to contaminate soil and groundwater.