Bhopal tragedy: Toxic legacy of the world's worst industrial disaster

The Bhopal gas disaster was the worst industrial accident of the 20th century. Thirty years later, survivors are still fighting for justice.

In the early hours of Dec. 3, 1984, noxious gas spewed from a pesticide plant in the Indian city of Bhopal, killing thousands. Activists say the $470 million they finally received in compensation from Union Carbide, the factory's American parent company, is not nearly enough for a leak that left more than half a million people disabled and a site that remains toxic to this day.

AJ+ follows hundreds of survivors as they board a train to the capital and demand a fairer deal.

It was one of the worst industrial disasters in history, but you might not have heard of the Bhopal disaster. What happened that day? And why are the victims still fighting for justice?