On 3 December 1984 a gas tank exploded at the US-owned Union Carbide pesticides manufacturing plant in Bhopal, India, releasing 40 tonnes of methyl isocyanate (MIC gas) in a lethal cloud that dispersed over the densely populated city.
At least 2,000 people died that night, and within three days, 8,000 were dead. Thousands more died in the months afterwards and hundreds of thousands were exposed to the gas. Many still suffer from its effects.
The Chingari Trust cares for children like Adil with severe disabilities, whose parents were exposed to the gas.
Campaigners say Bhopal has an unusually high incidence of children with birth defects and growth deficiency, as well as cancers, diabetes and other chronic illnesses.
Tarun Thomas who runs Chingari told the BBC: "These children are like this because of the gas, or because their parents drank contaminated water afterwards. We are determined to collect the statistical data to prove it."
Many in Bhopal believe that the plant is still leaking toxins into the water supply, although this is dismissed by Shivraj Chouhan, the chief minister of Madhya Pradesh.
In 1989, Union Carbide agreed to pay $470m in compensation.
Dow Chemical purchased Union Carbide in 2001, and has publicly stated several times that the Union Carbide settlement payments have already fulfilled any financial responsibility for the disaster.
Inside the plant, the control room is slowly rotting away.
No-one has ever been successfully prosecuted for what happened at Bhopal but those who live nearby will always remember what they call "the night of the gas". Photographs by Alex Masi
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