The document summarizes the 1984 Bhopal gas tragedy in India, considered the world's worst industrial disaster. On the night of December 2-3, 1984, a leak of methyl isocyanate gas from a Union Carbide pesticide plant in Bhopal killed over 2,500 people initially and caused injuries and long-term health issues for hundreds of thousands of others exposed to the toxic gas. The leak was caused by poor safety systems and maintenance at the aging plant. The tragedy highlighted issues of corporate responsibility, environmental protection, and compensation for victims of industrial disasters.