World

Indians demand punishment, more compensation on 30th anniversary of Bhopal disaster

  • Members of a social organization participate in a candle light vigil to express solidarity with the Bhopal gas tragedy survivors on the eve of its 30th anniversary in Bangalore, India, Tuesday, Dec. 2, 2014. Thousands of people died after a cloud of methyl isocyanate gas on on Dec. 3, 1984, escaped from a pesticide plant operated by a Union Carbide subsidiary in Bhopal, central India, affecting the lives of many. (AP Photo/Aijaz Rahi)

    Members of a social organization participate in a candle light vigil to express solidarity with the Bhopal gas tragedy survivors on the eve of its 30th anniversary in Bangalore, India, Tuesday, Dec. 2, 2014. Thousands of people died after a cloud of methyl isocyanate gas on on Dec. 3, 1984, escaped from a pesticide plant operated by a Union Carbide subsidiary in Bhopal, central India, affecting the lives of many. (AP Photo/Aijaz Rahi)  (The Associated Press)

  • Members of student groups and activists of social organizations participate in a candle light vigil to express solidarity with the Bhopal gas tragedy survivors on the eve of its 30th anniversary in Bangalore, India, Tuesday, Dec. 2, 2014. Thousands of people died after a cloud of methyl isocyanate gas on On Dec. 3, 1984, escaped from a pesticide plant operated by a Union Carbide subsidiary in Bhopal in central India, affecting the lives of many. (AP Photo/Aijaz Rahi)

    Members of student groups and activists of social organizations participate in a candle light vigil to express solidarity with the Bhopal gas tragedy survivors on the eve of its 30th anniversary in Bangalore, India, Tuesday, Dec. 2, 2014. Thousands of people died after a cloud of methyl isocyanate gas on On Dec. 3, 1984, escaped from a pesticide plant operated by a Union Carbide subsidiary in Bhopal in central India, affecting the lives of many. (AP Photo/Aijaz Rahi)  (The Associated Press)

  • Members of student groups and activists of social organizations participate in a candle light vigil to express solidarity with the Bhopal gas tragedy survivors on the eve of its 30th anniversary in Bangalore, India, Tuesday, Dec. 2, 2014. Thousands of people died after a cloud of methyl isocyanate gas on On Dec. 3, 1984, escaped from a pesticide plant operated by a Union Carbide subsidiary in Bhopal in central India, affecting the lives of many. (AP Photo/Aijaz Rahi)

    Members of student groups and activists of social organizations participate in a candle light vigil to express solidarity with the Bhopal gas tragedy survivors on the eve of its 30th anniversary in Bangalore, India, Tuesday, Dec. 2, 2014. Thousands of people died after a cloud of methyl isocyanate gas on On Dec. 3, 1984, escaped from a pesticide plant operated by a Union Carbide subsidiary in Bhopal in central India, affecting the lives of many. (AP Photo/Aijaz Rahi)  (The Associated Press)

Indians are marking the 30th anniversary of the Bhopal gas leak tragedy with protests demanding harsher punishments for those responsible and more compensation for the victims of the world's worst industrial disaster.

On Dec. 3, 1984, a pesticide plant run by Union Carbide leaked about 40 tons of deadly methyl isocyanate gas into the air, killing an estimated 15,000 people and affecting at least 500,000 more.

The disaster remains an open wound in India, where many consider Union Carbide's $470 million settlement with the government an insult.

Union Carbide is now a wholly owned subsidiary of the Dow Chemical Co.

Dow says it has no liability because it bought the company responsible for the plant after the cases had been settled.